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NASA Contractor Report 191489

Radiometer Offsets and Count ConversionCoefficients for the Earth Radiation BudgetExperiment (ERBE) Spacecraft for the Years1987, 1988, and 1989

Jack Paden, Dhirendra K. Pandey,Joseph C. Stassi, Robert Wilson,William Bolden, Susan Thomas, M. Alan Gibson

Science Applications International Corporation (SAIC)One Enterprise Parkway, Suite 250Hampton, Virgina 23666-5845

Contract NAS1-19570July 1993

National Aeronautk::s and

Space Administration

Langley Research Center

Hampton, Virginia 23681-O001

(NASA-CR-191689) RADIOMETER

OFFSETS AND COUNT CONVERSION

COEFFICIENTS FOR THE EARTH

RADIATION BUDGET EXPERIMENT (ERBE)

SPACECRAFT FOR THE YEARS 198T,

1988, AND lq89 Final Report

(Science Applications International G3/47

Corp. ) 213 p

N96-12772

Unclas

0182695

https://ntrs.nasa.gov/search.jsp?R=19940008300 2020-03-14T17:06:08+00:00Z

Radiometer Offsets and Count Conversion Coefficients for

the Earth Radiation Budget Experiment (ERBE) Spacecraft forthe Years 1987, 1988, and 1989

Jack Paden, Dhirendra K. Pandey,

Joseph C. Stassi, Robert Wilson,William Bolden, Susan Thomas, M. Alan Gibson

Science Applications International Corporation (SAIC)One Enterprise Parkway Suite 250

Hampton, Virginia 23666-5845

Contract Number NAS 1-19570

TABLE OFCONTENTS

SECTION PAGE

ACRONYMS ............................................................................................................................... v

SYMBOLS .................................................................................................................................. vi

1.0 Introduction ......................................................................................................................... 1

2.0 Scanning Radiometers ........................................................................................................ 1

2.1 Ground Offsets and the Scanner Count Conversion Algorithm ................................... 2

2.2 ERBS Scanner Offset Procedures ................................................................................ 3

2.3 NOAA Scanner Offset Procedures ............................................................................... 3

2.3.1 NOAA-9 Scanner Offset Procedures ................................................................. 7

2.3.2 NOAA-10 Scanner Offset Procedures ............................................................... 7

2.4 Significant Events ........................................................................................................ 8

2.4.1 Significant Events: ERBS .................................................................................. 8

2.4.2 Significant Events: NOAA-9 ............................................................................. 9

2.4.3 Significant Events: NOAA-10 ........................................................................... 9

3.0 Nonscanning Radiometers ................................................................................................... 9

3.1 Nonscanner Count Conversion Algorithms ............................................................... 10

3.1.1 Dome Degradation Corrections ........................................................................ 11

3.2 Ground Offsets ........................................................................................................... 15

3.3 In-Flight Offsets ......................................................................................................... 16

3.3.1 Total Channels .................................................................................................. 16

3.3.2 Shortwave Channels ......................................................................................... 17

3.4 Final Count Conversion Coefficients ......................................................................... 17

REFERENCES ........................................................................................................................... 18

FIGURE

1

2

3

LIST OF FIGURES

PAGE

ERBE Scanner Elevation Angles ................................................................................. 2

ERBS Scanner Offsets - Total Channel ....................................................................... 4

ERBS Scanner Offsets - Longwave Channel ................ : .............................................. 5

1t

PRECEDIN_ P/_E PLANK NOT FILMEL;

TABLE OF CONTENTS (concluded)

FIGURE

4

5

6

7

8

PAGE

ERBS Scanner Offsets - Shortwave Channel ............................................................... 6

ERBE Nonscanning Sensor Module .......................................................................... 10

ERBS Solar Calibration Data ..................................................................................... 12

NOAA-9 Solar Calibration Data ................................................................................ 13

NOAA-10 Solar Calibration Data .............................................................................. 14

TABLE

1

LIST OF TABLES

ERBE Nonscanner Ground Coefficients .................................................................... 15

A

B

C

D

E

F

G

H

I

J

K

APPENDICIES

ERBS Scanner Offset Tables ..................................................................................... 21

NOAA-9 Scanner Offset Tables ................................................................................ 23

NOAA- 10 Scanner Offset Tables .............................................................................. 29

NOAA-9 Scanner Offset Surface Plots ...................................................................... 31

NOAA-10 Scanner Offset Plots ................................................................................ 35

ERBS Nonscanner Offset Calibration Plots ............................................................... 41

NOAA-9 Nonscanner Offset Calibration Plots .......................................................... 45

NOAA-10 Nonscanner Offset Calibration Plots ........................................................ 49

ERBS Nonscanner Offsets (Merge) ........................................................................... 53

NOAA-9 Nonscanner Offsets (Merge) .................................................................... 125

NOAA- 10 Nonscanner Offsets (Merge) .................................................................. 127

iv

Acronym

ERBE

ERBS

FOV

FOVL

IBB

IVT

LaRC

LW

MFOV

MRBB

N.A.

NASA

NOAA

S.P.

SW

SWICS

T

WFOV

LIST OF ACRONYMS

Definition

Earth Radiation Budget Experiment

Earth Radiation Budget Satellite

Field-Of-View

Field-Of-View Limiter

Internal Blackbody

Instrument Validation Tape

Langley Research Center (NASA, Hampton, VA)

Longwave

Medium Field-Of-View

Master Reference Blackbody

Not Applicable

National Aeronautics and Space Administration

National Oceanic and Atmospheric Administration

Scan Position

Shortwave

Shortwave Internal Calibration Source

Total

Wide Field-Of-View

AE

AF

Av

AR

B

Esw

ET

TA

TH

TF

V

VR

LIST OF SYMBOLS

Gain due to LW heating of SW filter dome

Gain due to FOVL temperature

Gain due to active cavity

Gain due to reference cavity

Offsets

The radiance measured by the shortwave channel

The radiance measured by the total channel

The Aperture Temperature

The Heater Temperature

The FOVL temperature

The detector voltage

The Reference Cavity (Calibration) Heater Voltage

vi

1.0 INTRODUCTION

The NASA Earth Radiation Budget Satellite (ERBS) spacecraft was launched into a 57 degree

inclination, geocentric orbit on 5 October 1984. The National Oceanographic and Atmospheric

Administration (NOAA)-9 spacecraft was launched into a polar, Sun-synchronous, geocentric,

"noon/midnight" orbit on 12 December 1984. The NOAA-10 satellite was launched into a polar,

Sun-synchronous, geocentric, "terminator" orbit on 17 September 1986. Offsets and count

conversion coefficients for the ERBE satellites for the years 1985, 1986, and 1987 were published

in NASA LaRC Contractor Report 187589 (Reference 1), dated May 1991, and this report may be

considered to be a logical extension of that one.

2.0 _;CANNING RADIOMETERS

The relative positions of the scanner at various elevation angles are shown in Figure 1. The

complete design and method of operation of the scanners was described by Carman (Reference 2)

and Kopia (Reference 3). Data for scanner offsets are obtained from pre-Processed Archival Tapes

(also called pre-PATs or ID-3s) produced by the ERBE Merge Subsystem. The Merge Subsystem

and the ERBE scanner count conversion process is fully described by Stassi et al. (Reference 4).

An ERBE telemetry record consists of data measurements over a 16-second period. The ERBE

scanners complete one scan every four seconds; hence, there are four scans in each telemetry

record. A space-view is obtained every scan and is the source of the "space clamp" offset. Drift

in the "space clamp" over the scan is adjusted. The scan position offsets are those listed in this

report. It is important to mention that the scan positions referred to in this report, which range from

1 to 60, are known as the "Earth-viewing" scan positions, and they differ from the sample numbers

listed in other documents (e.g., Section 4, Reference 8), which range from 1 to 74. The conversion

from the "Earth-viewing" scan position to sample number is performed by adding 8 to the scan

position. Thus, sample numbers 1 to 7 are the "space-viewing" positions, 8 to 68 are "Earth-

viewing", and 69 to 74 are the "internal blackbody (IBB) viewing" positions. The nadir position

in the "Earth-viewing" system is scan position 34, and it is sample number 42.

MIRROR ATTENUATOR MOSAIC (MAM)

+ZEL0O__--..t-_ _ _ ilk " _ 11,2 _ _ 180 °

• _ _l_lJ__ 1630SPACE

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LOOK " I" ___ c _ "_ " _ 1580 END OF

," ,.2°S.ORTSCA.+'-'-XE L BOX BEAM

STRUCTURE90°NADIR

,.,.,....._._._..._ C W

Figure 1. ERBE Scanner Elevation Angles

2.1 GROUND OFFSETS AND THE SCANNER COUNT CONVERSION ALGORITHM

The ERBE Science Team (Reference 5) modeled and determined the count conversion coefficients

(Reference 6) using the TRW ground calibration data documented by Hendricks (References 7, 8,

and 9) for all ERBE scanning sensors. A more detailed description of the scanner count

conversion process is given by Lee et al. (Reference 10). The accuracy of the ERBE scanners was

shown by Lee et al. (Reference 11) to be within 1%. Stassi et al. (Reference 4) detailed the

software applications of the count conversion algorithms as they are used by the ERBE Merge

Subsystem. In abbreviated form, the following equation characterizes the scanner count conversion

algorithm used:

E$ClHI = GAIN * (raw counts - (scan position + space clamp count

offset))+ scan offset for the record + drift offset for the scan

where: GAIN =AV =VB =CVLT =

(AV/VB)*CVLT andaconstantfor thechanneldeterminedfrom groundcalibrationdata.

biasvoltagecountsfor thechannelacounts-to-voltageconversionfactor(=1/409.5)

Greenet al. (Reference12)discusstheprocessof invertingthesatelliteattitudemeasurementsto

thetop-of-the-atmosphere(TOA).

2.2 ERBS SCANNER OFFSET PROCEDURES

It has been verified, by using space-view data from in-flight pitch-up maneuvers, that the ERBS

in-flight scanner offsets remain the same as the ground offsets. Major differences were found,

however, between the scanner offsets when operated at the along-track azimuth position and those

found when operated in the cross-track position. Appendix A contains the ERBS cross-track and

along-track scanner offsets. All ERBE scanner operations for the period described in this

publication were in the cross-track mode. Plots of these filtered offsets are shown in Figures 2, 3,

and 4.

2.3 I'qOAA SCANNER OFFSET PROCEDURES

The procedures used in the determination of the in-flight offsets for the ERBE NOAA satellites

were developed by Mr. Lee Avis (Reference 13) of the Atmospheric Sciences Division at the

NASA Langley Research Center (LaRC). The procedures include:

1. Accepting the ERBS measurements as "truth"

2. Comparing ERBS measurements to those of NOAA-9 or NOAA-10

3. Assume differences are offset errors

4. Adjust the NOAA measurements using the measured differences

The procedures are unique to the scanner instruments. The NOAA-9 and NOAA-10 scanner

offsets were produced only for scan positions 5 - 60 because scan positions 1 - 4 are either space

scans or are space contaminated. Detailed procedures are outlined in the following paragraphs.

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2.3.1 NOAA-9 SCANNER OFFSET PROCEDURES

For selected days during the month, when the ERBS averaged radiance profile is approximately

Lambertian and the ERBS and NOAA-9 satellite orbits intersect in darkness, averages of the

differences in the two readings for each scan position (corrected for differences in satellite altitude)

were determined. These "offsets" are called the "benchmark" offsets and represent the amount by

which the NOAA-9 measured radiances must be corrected to produce the "corrected to ERBS"

values. The NOAA-9 offsets for each day, or for a group of days, are determined by applying the

"benchmark" offsets to the NOAA-9 readings for the "benchmark" day or days, averaging if more

than one day is involved, and taking the difference between these "corrected to ERBS" NOAA-9

radiances and the measured NOAA-9 radiances on the day in question. The NOAA-9 scanner

offsets, generated by using the "Avis" method (Reference 13)just described, are shown in

Appendix B of this report. In the listings contained in Appendix B, there are occasional columns

which are filled with asterisks. In those cases, there either were no data for the day in question, or

the data were not reduced.

2.3.2 NOAA-10 SCANNER OFFSET PROCEDURES

In the case of the NOAA- 10 satellite, scanner offsets are necessarily produced in a different manner

than those for NOAA-9 because in the NOAA-10 terminator orbit, there are few intersections in

darkness; and because the NOAA-10 offsets have been found to be sensitive to scanner azimuth

angle, which was set at either 0 or 35 degrees. Therefore, to determine NOAA-10 offsets, the

NOAA-9 procedures were modified to use an average of all offsets for days which contain

nighttime intersection data during the period under consideration (i.e., the period when the scanner

azimuth angle remains fixed at either 0 or 35 degrees). These averaged data were then used as the

NOAA-10 offsets for each day of the entire period. The NOAA-10 scanner offsets which were

generated using the modified procedures method, are shown in Appendix C of this report. Offset

plots for the ERBS, NOAA-9, and NOAA-10 scanners are shown in Appendices E and F,

respectively. Since ERBS offsets did not vary with time, the ERBS plots are 2-dimensional.

NOAA-9 offsets are shown in surface plots because they changed daily. NOAA- 10 offsets varied

only when the scanner azimuth angle changed; therefore, only two different sets were used.

2.4 SIGNIFICANT EVENTS

During the lifetimes of the three ERBE satellites, there were periods when the satellites did not

function "normal" in the Earth-viewing mode. Some of these special measurement events were

planned, such as the biweekly internal calibrations and operations in the along-track (or

pushbroom) mode, others were not. The most significant of these events are described in the

following paragraphs.

2.4.1 SIGNIFICANT EVENTS: ERBS

1987 - During the month of February, from the 15th to the 25th; during the month of June, from

the 3rd to the 17th; during the month of August, from the 17th to the 27th; and during the month

of December, from the 3rd to the 17th; the ERBS scanner was operated at an azimuth angle of 145"

(i.e., the "hot-orbit" position). At all other times during the year, the scanner was operated at the

"normal" cross-track azimuth angle of 180`'. The scanner operated in "normal Earth-scan" mode,

and the nonscanner operated with azimuth and elevation angles of 0" for the entire year. On 2 July

1987, during a scheduled in-flight orientation, change control of the spatial orientation of the

ERBS spacecraft was lost. To prevent damage to the instrument, power was turned off. Control

was regained on 4 July. When the instrument was powered-up, the offsets for the nonscanner

detectors were found to have shifted.

1988 - During the month of February, from the 14th to the 24th; during the month of June, from

the 2nd to the 16th; during the month of August, from the 15th to the 25th; and during the month

of December, from the 2nd to the 15th; the ERBS scanner was operated at an azimuth angle of

145". At all other times during the year, the scanner was operated at the normal cross-track

azimuth angle of 180". The scanner operated in the normal Earth-scan mode, and the nonscanner

operated with azimuth and elevation angles of 0" for the entire year.

1989 - During the month of February, from the 13th to the 23rd; during the month of June, from

the 1st to the 15th; during the month of August, from the 14th to the 24th; and during the month of

November, from the 30th to the 14th of December; the ERBS scanner was operated at an azimuth

angle of 145". At all other times during the year, the scanner was operated at the normal cross-

8

trackazimuthangleof 180°. Thescanneroperatedin thenormalEarth-scanmode,andthe

nonscanneroperatedwith azimuthandelevationanglesof 0° for theentireyear.

2.4.2 SIGNIFICANTEVENTS: NOAA-9

The scanner instrument failed at 18:49;12 on 20 January_ 1987. Thereafter, there are no scanner

offset data for the NOAA-9 satellite.

2.4.3 SIGNIFICANT EVENTS; NOAA-10

Because of the orientation of the Sun in relation to the NOAA-10 scanning plane in this terminator

orbit, the scanner azimuth angle must be changed periodically to prevent scanning of the solar disk.

On 1 January 1987, the scanner was operating at an azimuth angle of 35 ° and remained so until

17:44 on 21 April 1987, when it was changed to 0 °, where it stayed until 12:38 on 31 August 1987.

At that time the scanner azimuth was again set to 35 ° , where it remained until 13:31 on 19 April

1988, when it was again returned to 0 °. The scanner azimuth remained at 0 ° until 20:42 on 29

August 1988, when it was again set to 35 ° . The scanner remained at an azimuth of 35 ° until 13:15

on 16 April 1989, when it was returned to 0 °. The scanner remained at a 0 ° azimuth until the

in_Tument failed at 17:03:26 on 22 May 1989. Thereafter, there are no scanner offset data for the

NOAA- 10 satellite.

3.0 NONSCANNING RADIOMETERS

The ERBE nonscanning sensor module is illustrated in Figure 5. The complete design and method

of operation for the nonscanners was described by Carman (Reference 14) and Luther et al.

(References 15 and 16). The TRW ground calibration data for the ERBS, NOAA-9, and NOAA-

10 nonscanners were documented by Fellner et al. (References 17, 18, and 19). The ERBE Science

Team and Halyo et al. (References 5 and 6) designed, modeled, and developed count conversion

equations to represent the TRW ground calibration data. They also produced the final count

conversion coefficients for all nonscanning sensors. For the most part, nonscanner offsets were

produced for every usable calibration day. The normal nonscanner calibration frequency was once

every two weeks.

CAVITY

ELEVATIONBEAM

HEAT SINK

INSULATOR

SPACER

SUBSTRATE

FIELD LIMITINGAPERTURE

I

PRIMARYI FILTER APERTURE

DOME

Figure 5. ERBE Nonscanning Sensor Module

3.1 NONSCANNER COUNT CONVERSION ALGORITHMS

The equations used in the determination of nonscanner offsets were developed by the ERBE

Science Team and are as foiling, s:

TOTAL CHANNELS (WFOV & MFOV)

ET = A v . V 2 = A F • T F + A R • V 2 + B T (1)

SHORTWAVE CHANNELS (WFOV & MFOV)

Esw = A v.V 2+A F.T F+A E-E T+A 2+Bsw (2)

The in-flight total channel count conversion coefficients, except for the B T offset term, remain the

same as the ground coefficients. The offset term, BT, was recalculated using in-flight calibration

data. However, because of degradation of the transmissivity of the Suprasil dome used to block

10

longwaveradiationfrom enteringtheactivecavityof theshortwavechannel,eachcountconversioncoefficientfor theshortwavechannelismodifiedasdescribedin paragraph3.1.1.

Theshortwaveoffsetterm,Bsw,is thenrecalculatedusingthein-flight dataasdescribedin

paragraph3.3.

3.1.1 DOME DEGRADATIONCORRECTION

Thetransmissivitydegradationcausedby solarexposureof thedomeis computedfor each

calibrationday. Themethodof correctionof theshortwavedatato compensatefor thisdome

degradationis accomplishedby usingtherelationship:

where:

A(t)

A(t)

S(to)

s(t)

A

= {s(to)/S(t)}-A

= "corrected"in-flight shortwavecoefficient

= measuredsolarirradianceonday0

= measuredsolarirradianceonday t

= groundcoefficientfor thetermin question

Thefactor{s(t0)/s(t)}is sometimesreferredto asthedomedegradationfactor. It is anumber

(normallygreaterthan1)whichrepresentstheamountby whichthegroundcoefficient,A, must

beincreasedto compensatefor degradationof thedome.Thesecommentsapplyto all "A"

coefficientsin theshortwaveequation(2). BeforeJuneof 1988(in thecaseof NOAA-10),and

beforeJulyof 1988(in thecasesof ERBSandNOAA-9); for thecoefficientsandoffsetslistedin

thisdocument,thevalueof s(t)wascalculatedfromasecondorderfit to solarcalibrationdata,both

beforeandafterthedatadays.After thepreviouslymentioneddates,thecoefficientsandoffsets

weredeterminedbylinearinterpolationsof thesolarcalibrationdatatakenby theEarth-viewing

channelson theclosestcalibrationdaysbracketingthedataday. Thereasonfor thesechangesis

illustratedgraphicallyin Figures6,7,and8, whichdescribe,respectively,thesolarmeasurements

takenby theEarth-viewingchannelsfor theERBS,NOAA-9, andNOAA-10 spacecraft.The

initial degradationof theERBSWFOV shortwavechannel(Figure6) wasverycloseto second

order;however,theflattening,rise,andthenmoregradualdegradationof theERBSchannel(at

aboutthe3-yearmark)indicatedother(unpredictable)factorswereinvolved. Moreover,similar

behaviorof theNOAA-10WFOV shortwavechannel(Figure8) reinforcedourneedto abandon

11

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the curve-fitting method in favor of the "instantaneous" method of determining degradation

factors.

The offset terms, Bsw, were then computed by assuming zero shortwave energy present in the

nighttime in-flight data. These in-flight offsets have been described elsewhere by Paden et al.

(Reference 20).

3.2 GROUND OFFSETS

Ground calibrations for the ERBE nonscanners were performed by Fellner et al. (References 13,

18, and 19) at the TRW facility in Redondo Beach, California, and an analysis of these calibrations

was performed by the ERBE Science Team (Reference 5). The resultant coefficients are presented

in Table 1.

TABLE 1. ERBE Nonscanner Ground Coefficients

SAT COEF.

ERBS

TOT

S/W

WFOV

AV

-22.7873

AF

-1.3968

AR

26.1161

MFOV -22.7093 -0.9230 25.1276

WFOV -25.5824 -0.6434 26.5454

MFOV -25.5337 1.2227 29.0431

B

1703.700

1273.547

1311.386

AE

N.A.

N.A.

-0.03051

-0.037511014.669

WFOV -22.8621 -0.3977 24.7635 1475.430 N.A.

MFOV -22.5566 -0.5274 23.9133 1211.540 N.A.

WFOV -25.9880 -0.3540 30.1311 1359.474 -0.03465

MFOV -25.4599 0.7092 28.9870 841.703 -0.03604

-22.5230 -0.4216 23.8202 1432.85 N.A.

NOAA9

TOT

S/

W

NOAA10

T WFOVOT MFOV

S WFOV/

W MFOV

-23.2215 -1.9825 22.4009 1668.74 N.A.

-24.3501 -1.3074 28.6683 1417.18 _.03032

-25.0633 -3.3751 29.1677 .1942.58 -0.02270

15

3.3 IN-FLIGHT OFFSETS

The ERBE Merge Subsystem, described by Stassi et al. (Reference 4) was used to produce

Instrument Validation Tape (IVT) for each calibration day in question. This tape was used as the

source for nonscanner in-flight calibration data. Appendices F, G, and H contain figures depicting

the offsets derived on the calibration days for the ERBS, NOAA-9, and NOAA- 10 satellites,

respectively. Monthly tables of nonscanner offsets, as they were used by the Merge Subsystem,

are reproduced in their original memoranda format in Appendices I, J, and K, for the ERBS,

NOAA-9, and NOAA-10 satellites, respectively. At the time of publication of this document,

nonscanner offsets (for the production of archivable products) were available for the following

months only:

ERBS : 1 January 1987 through 31 December 1989

NOAA-9 : 1 January through 31 January 1987

NOAA-10:1 January 1987 through 31 May 1989

3.3.1 TOTAL CHANNELS

Two data sets are used to independently determine total channel offsets (i.e., the BT terms). These

are referred to as "B-soak" and "internal cal." The "B-soak" data set is the set of 60 IVT records

beginning 90 records before the "go to nadir" command preceding the elevation of the instrument

to the internal sources for the internal calibration sequence. The "internal cal" data set is the data

set comprised of records collected during the internal calibration sequence when both the

Shortwave Internal Calibration Source (SWICS) and the calibration heater voltages are zero. Total

channel offsets are independently determined from both of these data sets, using the temperature

and voltage data supplied by the IVT records. If the "B-soak" offset is present, it is the preferred

offset and is the final total channel offset. If the "B-soak" offset is not available, then the "internal

cal" offset is used. In conformance with the characterization of the total channel offsets (Reference

6), we have added the correction factor multiplied by the configuration factor to convert the

internal blackbody (IBB) measurements into the master reference blackbody (MRBB) units. All

nonscanner offsets listed in this document include this correction factor.

16

3.3.2 SHORTWAVE CHANNELS

Four data sets are defined for use in the independent determination of shortwave channel offsets.

The "B-soak" and "internal cal" data sets, as described for the total channels; the "nighttime" data

set; and the "solar car' data set. The "nighttime" data set is the aggregate of all data records

collected when the solar zenith angle is greater than a specified value. The specified value is

normally 123 degrees. The "solar car' data set is the collection of "space-look" records (about 24)

following solar exposure while the instrument is returning to nadir. During the "nighttime" and

"solar car' periods, the incident shortwave flux is assumed to be zero. If there is data for the

"nighttime" offset, this is the preferred offset. If not, then the second choice is the "internal cal"

offset determined by using the IVT data (and using the SWICS temperature to determine the total

channel flux reading, if the SWICS was being observed) adjusted by the appropriate "delta" (e.g.,

the fitted difference between the "nighttime" and the "internal cal" shortwave offsets). Failing

either of these options, we then resort to using interpolated "nighttime" (first choice) or "internal

cal" (second choice) data from the calibration days immediately preceding and succeeding the day

in question. "Solar cal" offsets are not currently used. Deltas for shortwave channel correction

from internal calibration data to its "nighttime" equivalents are determined from least squares

linear fits to historical shortwave calibration data.

3.4 FINAL COUNT CONVERSION COEFFICIENTS

Appendices F, G, and H contain tables of nonscanner offsets for the ERBS, NOAA-9, and

NOAA-10 satellites, respectively, for the years 1987, 1988, and 1989. These offsets were

generated using data acquired on internal calibration days, which is shown in the plots in

Appendices I, J, and K and are presented as they were used by the ERBE Merge Subsystem. For

the most part, nonscanner offsets were produced for every useable calibration day, and the

nonscanner internal calibration frequency was approximately once every two weeks. As

mentioned in the Introduction, NOAA-9 scanner offsets end in January 1987, and NOAA-10

offsets end in May 1989 due to the failure of their scanner instruments.

17

REFERENCES

, J. Paden, Dhirendra K. Pandey, Netra D. Shivakumar, Joseph C. Stassi, Robert Wilson,

William Bolden, Susan Thomas, and M. Alan Gibson, "Radiometer Offsets and Count

Conversion Coefficients for the Earth Radiation Budget Experiment (ERBE) Spacecraft for

the Years 1984, 1985, and 1986," NASA Contractor Report 187589, NASA LaRC, May 1991.

2. S.L. Carman, "ERBE Scanner Instrument Operations Manual," TRW Document No.

D04607A, 1982.

3. L.P. Kopia, "The Earth Radiation Budget Experiment Scanner Instrument", Rev. Geophys.,

Vol. 24, No. 2, 400-406, May 1986.

o J. C. Stassi, L. H. Hoffman, and I. J. Walker, "Earth Radiation Budget Experiment (ERBE)

Data Management System Reference Manual", Volume IV - Merge, FOV Calculations, Count

Conversion, NASA LaRC, ERBE 3-3-9-4-87-8-0, 1987.

5. B.R. Barkstrom, "The Earth Radiation Budget Experiment," Bulletin of American

Meteorological Sociely, 65, 1170-1185, 1984.

o N. Halyo, D. K. Pandey, and D. B. Taylor, "Modelling and Characterization of the Earth

Radiation Budget Experimen-' (ERBE) Nonscanner and Scanner Sensors," NASA Contractor

Report 181818, March 1989.

7. C.K. Hendricks, "Final Calibration Report on ERBE Protoflight Model Scanner Instrument",

TRW Document No. D06905, 1984.

8. C.K. Hendricks, "Final Calibration Report on ERBE Flight Model One Scanner Instrument",

TRW Document No. 1306903, 1984.

9. C.K. Hendricks, "Final Calibration Report on ERBE Flight Model Two Scanner Instrument",

TRW Document No. D06907, 1984.

18

10. RobertB.LeeIII, BruceR. Barkstrom,NesimHalyo,MichaelA. Gibson,andLeeM. Avis,

"Characterizationsof theEarthRadiationBudgetExperiment(ERBE)Scanning

Radiometers,"SPIEProc.,1109,186-194,1989.

11.R. B. LeeIII, M. A. Gibson,S.Thomas,J.R.Mahan,J.L. Meekins,andN. E. Tira, "Earth

Radiation Budget Experiment Scanner Radiometric Calibration Results," SPIE Proc., Vol.

1299, 80-91, 1990.

12. R. N. Green, L. J. Harris, M. J. Johnson, and J. L. Robbins, "Earth Radiation Budget

Experiment (ERBE) Data Management System Reference Manual," Volumes Va and Vb -

Inversion, NASA LaRC, ERBE 3-3-9-5-87-8-0, 1987.

13. L. M. Avis, W. C. Bolden, R. B. Lee III, J. Paden, D. K. Pandey, J. C. Stassi, C. J. Tolson, and

R. S. Wilson, "NOAA-9 Earth Radiation Budget Experiment (ERBE): Scanner Offsets

Determination," 1993.

14. S. L. Carman, "ERBE Nonscanner Instrument Operations Manual," TRW Document No.

D04608A, 1982.

15. M. R. Luther, T. A. Even, R. J. Hesser, W. D. Potter, and A. Castinerias, "Performance

Characteristics of Active Cavity Radiometers in Unshuttered Applications," Applied Optics,

Vol. 25, No. 20, 3705-3709, 1986.

16. M. R. Luther, J. E. Cooper, and G. R. Taylor, "The Earth Radiation Budget Experiment

Nonscanner Instrument," Rev. Geophys. and Space Physics, Vol. 24, No. 2, 391-399, May

1986.

17. R. Fellner, T. Even, and R. Hesser, "Final Calibration Report on ERBE Flight Model One

Nonscanner Instrument", TRW Document No. D06904, 1984.

18. R. Fellner, T. Even, and R. Hesser, "Final Calibration Report on ERBE Flight Model Two

Nonscanner Instrument", TRW Document No. D06906, 1984.

19

19. R. Fellner, T. Evert, and R. Hesser, "Final Calibration Report on ERBE Protoflight Model

Nonscanner Instrument", TRW Document No. D06908, 1984.

20. J. Paden, D. K. Pandey, R. S. Wilson, S. Thomas, M. A. Gibson, and R. B. Lee HI, "Ground

and In-flight Calibrations for the Earth Radiation Budget Experiment (ERBE) Nonscanning

Radiometers," SPIE Proc., 1300, 190-201, 1990.

20

APPENDIXA

ERBSSCANNEROFFSETTABLES

"S.P." in the following tables means scan position. All scanner offsets have the units watts per

square meter per steradian

21

ERBS SC_NER O*"FSETS

I J.4I,,Nt,M_Y 1987 THROUGH 31 0(:CEMBER 1989

S.P. TOTJd. LW SW

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

39

..39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

I 0.12

2 0,09

3 0

4 -0.04

-0.56

-0.36

0.14

0.15

0.24

-0.45

-0.37

-0.45

-0.28

0.33

0.34

0.35

0.38

0.45

0.46

0.52

0.55

0.5

0.48

0.52

-0.04

0,18

0.79

0.82

0.92

0,26

0.33

0.33

0.52

1.12

1.14

1.2

1.14

1.19

1.25

1.25

1.25

1,16

1,2

1.21

0.62

0.79

1.45

1,47

1.51

0.82

0.91

.02

.09

.65

.58

.56

.52

.45

.42

1.4

1.38

1.31

23

0.13 0.41

0,06 -0.7

0.03 -0.58

-0.06 -0.49

-0.45 -1.13

-0,26 -0.88

0.14 -0.63

0.22 -1.04

0,25 -0.77

-0.34 -0.8 t

-0.25 -1.23

-0.31 -0.97

-0.14 -0.68

0.39 -0.91

0.4 -0,76

0.43 -0.54

0.42 -0,95

0.5 -0.68

0.49 -0.45

0.56 -0.77

0.6 -0.61

0,46 -0.53

0.49 -0.97

0,54 -0.78

0.02 -0.72

0.28 -0.97

0.81 -0.58

0.86 -0.37

0.97 -0,68

0.32 -0.73

0.41 -0.52

0.43 -0.84

0.56 -0.53

1.16 -0.19

1.18 -0.59

1.22 -0.32

117 -0.2

125 -0.6

1.3 -0.37

1.25 -0.18

1,31 -0.61

1,23 -0.44

1,18 -0.5

1,28 -0.67

0.7 -0.62

0.82 -0,4

1.48 -0.56

1.51 -0.29

1.56 -0.08

0.84 -0.72

0.93 -0.49

1.17 -0.12

1.17 -0.63

1.73 -0.29

1.65 -0.17

1.62 -0.63

1.6 -0.44

1,49 -0.32

1,51 -0,74

1,51 -0,51

1.43 -0.41

1,41 -1,19

PRECEL"HP,;_ PA3E BLA_'_K i_or FILME(.,-

APPENDIX B

NOAA-9 SCANNER OFFSET TABLES

The term "S.P." in the following tables means scan position. All offsets have the units watts per

square meter per steradian.

25

NOAA'9 SCANNEROFFSETS FOR JANUARY 1987: TOTAL CHAMMELDAY OF NONTH -->

S.P. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

1 -1.27 -1.27 -1.27 -1.27 -1.27 -1.27 -1.27 -1.27 -1.27 -1.27 -1.27 -1.27 -1.27 -1.27 -1.272 1.04 1.04 1.04 1.04 1.04 1.04 1.04 1.04 1.04 1.04 1.04 1.04 1.04 1.04 1.043 1.93 1.93 1.93 1.93 1.93 1.93 1.93 1.93 1.93 1.93 1.93 1.93 1.93 1.93 1.934 -9,64 -9.64 -9.64 -9.64 -9.64 -9.64 -9.64 -9.64 -9.64 -9.64 -9.64 -9.64 -9.64 -9.64 -9.645 -1.98 .22 -1.01 2.11 2.13 1.83 .93 .34 -2.72 -2.45 -2.60 .70 -4.07 ,70 -.316 -1.84 -.51 -.63 .42 .72 .63 .03 -.24 -1.26 -1.55 -1.20 -.01 -1.82 .22 -1.117 -2.11 -.63 -.96 -.91 -.16 -.73 -.90 -.78 -1.7] -1.70 -1.28 -1.36 -2.00 -1.29 -1.218 -2.84 -.97 -1.84 -2.49 -1.43 -2.22 -2.44 -1.75 -2.76 -2.30 -2.28 -2.81 -3.39 -2.82 -2.079 -1.67 .23 -.48 -1.91 -.69 -1.35 -2.02 -.52 -1.59 -1.19 -1.22 -2.38 -2.60 -1.95 -1.16

10 -1.25 .26 -.29 -1.63 -.63 -.95 -1.97 -.11 -1.22 -1.16 -1.06 -2.79 -2.43 -1.70 -.7711 -1.25 .02 -.81 -1.62 -.90 -1.14 -2.01 -.36 -1.45 -1.55 -1.28 -3.26 -2.61 -1.96 -.7612 -1.18 -.32 -1.14 -1.71 -1.16 -1.30 -1.84 -.67 -1.80 -1.80 -1.69 -3.65 -2.62 -2.18 -.8413 -1.37 -.88 -1.45 -2.00 -1.45 -1.57 -1.91 -1.34 -2.25 -2.05 -2.24 -4.00 -2.70 -2.57 -1.2414 -.67 -.16 -.55 -.98 -.66 -.61 -.84 -.88 -1.44 -1.26 -1.45 -2.98 -1.77 -2.04 -.4515 -.68 -.06 -.34 -.42 -.42 -.32 -.46 -.87 -.85 -1.05 -1.28 -2.48 -1.43 -2.05 -.35

.27 -.17 .05 -.02 -.69 -.23 -.78 -1.06 -1.88 -1.01 -1.90 -.17

.92 -.28 -.21 .38 -.60 .30 -.52 -.79 -1.32 -.55 -1.57 .08

.15 -1.37 -1.53 -.47 -1.57 -.65 -1.36 -1.83 -2.16 -1.28 -2.25 -.88

.58 -.65 -1.15 -.17 -1.14 -.63 -1.18 -1.69 -1.78 -.79 -1.72 -.62

.35 -.50 -1.00 -.60 -1.48 -1.35 -2.09 -2.29 -1.99 -.96 -1.95 -1.09

.49 -.29 -.51 -.72 -1.67 -1.37 -2.55 -2.68 -1.71 -.95 -1.90 -1.30

.59 -.34 -.22 -.85 -1.83 -.85 -2.71 -2.97 -1.31 -.90 -1.64 -1.42

.74 -.17 -.19 -.90 -1.88 -.52 -2.47 -2,96 -.93 -.87 -1.46 -1.43

.95 .08 -.02 -.74 -1.68 -.18 -1.66 -2.39 -.63 -.80 -1.23 -1.31.10 -.77 -1.37 .01 -1.24 -1.94 -.50 -.73 -.97 -1.21.45 -.46 -.94 .28 -.59 -1.26 -.10 -._, -.64 -.88.53 -.66 -.96 .01 -.57 -1.08 -.15 -.40 -.87 -1.04.27 -.97 -1.13 -.51 -.94 -1.]4 -.44 -.58 -1.27 -1.44.89 -.27 -.50 -.04 -.56 -.86 .14 .10 -.66 -.g8.34 -.76 -1.10 -.59 -1.35 -1.68 -.43 -.52 -1.14 -1.56.42 -.61 -.97 -.40 -1.36 -1.76 -.27 -.41 -.94 -1.37

32 .81 -.22 -.52 -.07 -1.07 -1.52 .07 -.09 -.43 -1.0233 .68 -.36 -.59 -.30 -1.21 -1.68 -.11 -.]4 -.46 -1.0934 .65 -.24 -.39 -.45 -1.25 -1.74 -.16 -.46 -.35 -.8535 .26 .09 -.79 -1.17 .47 -.10 .28 -.1736 .59 .13 -.28 .85 .04 .79 .02 .11 -.11 -1.11 -1.25 .38 -.36 .10 -.3137 .80 .23 .06 .86 .08 .83 .28 .32 -.13 -1.08 -.98 .55 -.14 .28 -.0638 .78 .14 .23 .67 .03 .62 .35 .48 -.36 -1.24 -.97 .59 .01 .32 .0739 .90 .18 .43 .69 .25 .80 .46 .71 -.35 -1.16 -.73 .61 .16 .60 .3840 .45 -.44 -.11 .15 -.12 .41 -.15 .15 -.90 -1.46 -1.12 -.13 -.38 .30 .0341 .77 - .27 .23 .39 .25 .72 .01 .43 - .63 -1.06 -.77 .09 .03 .69 .3642 .97 - .11 .36 .47 .48 .87 .07 .67 - .35 -.82 -.56 .33 .29 .91 .4143 .61 -.45 -.03 -.06 .21 .47 -.40 .25 -.62 -1.17 -1.02 .06 -.01 .53 -.0844 .76 ".19 .15 ".04 .41 .56 -.17 .27 ".44 "1.05 -.88 .]4 .11 .68 .1445 .90 .19 .47 .24 .67 .72 .38 .43 ".20 -.88 ".53 .49 .21 .94 .4546 1.00 .44 .79 .31 .89 .QO .72 .65 " .03 - .63 ".35 .53 .24 1.07 .5947 .41 .05 .42 - .]4 .47 .47 .43 .]6 - .37 - .84 ".93 " .01 ".20 .54 .0748 .30 .26 .69 - .21 .67 .66 .64 .67 ".22 - .37 - .82 .05 - .01 .70 .2649 -.05 .20 .72 ".25 .59 .55 .55 .63 ".]4 -.25 -.81 -.17 -.03 .58 .1150 -.42 .17 .69 -.41 .48 .39 .46 .44 -.25 -.22 -.66 -.30 -.12 .30 -.1751 -.65 .42 .91 -.38 .54 .44 .48 .22 -.12 -.09 -.20 -.28 -.14 .08 -.2852 - .53 .66 1.23 -.27 .70 .68 .61 .27 .11 .09 .38 -.18 -.31 .03 -.2953 - .22 .91 1.45 .16 .97 .81 .86 .58 .30 .05 .77 .14 -.31 .08 -.0754 - .23 .69 1.15 .00 .51 .30 .60 .57 .01 -.50 .39 -.07 -.60 -.42 -.1155 .20 1.24 1.33 .44 .68 .35 .67 1.05 .15 -.17 .66 .07 -.45 -.30 .0756 -1.36 .05 -.36 -1.00 -1.04 -1.42 -1.31 -.55 -1.39 -1.96 -.91 -1.72 -2.05 -2.13 -1.8257 -1.78 -.31 -.99 -1.66 -1.77 -2.02 -1.95 -1.12 -1.49 -3.01 -1.82 -2.64 -2.57 -2.74 -2.5258 -2.75 -1.83 -2.52 -2.92 -2.79 -3.29 -3.03 -2.78 -2.62 -4,42 -3.71 -4.27 -3.92 -3.92 -3.7259 -3.]4 -3.29 -3.94 -3.91 -3.62 -3.81 -3.94 -4.38 -3.51 -4.95 -5.09 -5.23 -4.48 -4.73 -4.0060 -12.68 -14.33 -13.60 -15.62 -15.69 -15.04 -14.82 -14.87 -11.15 -13.30 -13.27 -14.00 -9.84 -13.69 -12.5661 11.19 11.19 11.19 11.19 11.19 11.19 11.19 11.19 11.19 11.19 11.19 11.19 11.19 11.19 11.1962 -1.63 -1.63 -1.63 -1.63 -1.63 -1.63 -1.63 -1.63 -1.63 -1.63 -1.63 -1.63 -1.63 -1.63 -1.63

16 -.55 .18 -.0417 -.25 .58 .3418 -.99 -.10 -.4819 -.50 .31 -.0820 -.74 -.07 -.3421 -.83 -.21 -.2422 -.83 -.20 -.0723 -.72 -.14 .1424 -.55 -.10 .2825 -.51 -.09 .13 1.07 .2426 -.26 .23 .22 1.33 .5227 -.30 .11 -.05 1.22 .3028 -.57 -.28 -.54 .86 -.1529 .20 .20 -.08 1.35 .4530 -.21 -.41 -.75 .65 -.1031 -.05 -.29 -.76 .70 -.08

•33 .17 -.42 .99 .23• 15 -.02 -.60 .74 .01.08 -.12 -.67 .71 -.02.64 .37 -.22 1.14 .41 1.10 .27

27

NOAA-9

S.P. 16 17 18 19 20

11.19-1.63

21

1 -1.27 -1.27 -1.27 -1.27 -1.27 -1.272 1.06 1.04 1.04 1.04 1.04 1.043 1.93 1.93 1.93 1.93 1.93 1.934 "9.64 -9.64 "9.64 "9.64 "9.64 "9.645 "1.67 2.27 "1._ 1.05 ".60 ******6 ".94 .67 .18 -.13 -1.18 ******7 -1.43 ".05 .01 -1.27 "1.47"*****8 "2.49 "1.39 "1.08 "2.57 "1.98 *****"9 -1.39 ".93 ".16 "1.58 -.64 ******

10 ".97 "1.17 ".12 -1.25 ".26 ******11 ".87 -1.60 ".61 "1.19 -.21 ******12 ".89 "1.72 "1.02 -1.03 ".03 ******13 "1.10 "2.06 -1.61 -1.18 ".28 ******14 - .30 "1.22 - .92 -.33 .32 *****t15 -.19 ".98 -.63 ".10 .45 ******16 -.02 -.62 ".25 .24 .73 ******17 .30 ".17 .26 .74 1.11 ******18 ".56 -.85 ".31 ".03 .39 ******19 ".21 ".26 .17 .17 .81 ******20 ".68 ".40 ".09 ".31 .33 ******21 -.41 ".32 ".14 ".42 .25 ******22 ".44 ".35 ".18 -.38 .39 ******23 ".51 ".21 ".14 -.19 .51 ******24 -.43 .00 ".05 .09 .57 ******25 ".38 .08 ".11 .35 .55 ******26 ".12 .40 .09 .85 .76 ******27 -.19 .40 ".03 .76 .59 ******28 -.42 -08 ".37 .38 .29 ******29 .15 .58 .09 .90 .94 ******30 ".52 -.11 ".61 .33 .32 ******31 ".42 -.06 ".49 .42 .33 ******32 ".09 .42 ".06 .82 .72 ******33 ".37 .29 -.08 .64 .70 ******34 -.45 .26 .11 .59 .80 ******35 .08 .78 .81 1.12 1.42 ******36 ".18 .60 .61 .85 1.20 ******37 -.09 .75 .75 1.00 1.29 ******38 ".18 .81 .74 1.03 1.20 ******39 ".07 .98 .79 1.17 1.27 ******40 -.64 .39 .14 .61 .81 ******41 " .53 .55 .37 1.03 .97 ******42 ".40 .64 .67 1.32 .85 ****"*43 ".73 .28 .45 .88 .19 ******44 ".50 .45 .72 .91 .21 ******45 -.06 .83 1.18 .97 ._0 ******46 .31 1.04 1.55 1.01 .41 ******47 ".05 .68 1.23 .42 ".25 ******68 .08 .64 1.52 .54 ".14 ******49 ".04 .59 1.45 .41 -.37 ******50 ".12 .55 1.30 .27 ".69 ******51 ".02 .81 1.68 .41 ".75 ******52 .39 1.13 1.72 .83 -.59 *****t53 .89 1.52 2.01 1.16 ".12 ******54 .94 1.43 1.94 .77 ".22 ******55 1.36 1.81 2.27 1.01 .15 ******56 ".39 .12 .39 ".65 "1.30 ******57 ".92 ".87 ".56 "1.15 -1.44 ******58 "2.13 "2.91 "2.21 "2.23 "2.33 ******59 "3.03 -4.37 "3.34 "3.08 -2.67 **"***60 "10.63 "14.14 "10.64 - 12.16 "10.8361 11.19 11.19 11.19 11.19 11.1962 -1.63 -1.63 -1.63 -1.63 -1.63

SCANNEROFFSETS FOR JANUARY 1987:DAY OF NONTH -->

22 23 24 25

-1.27 -1.27 -1.27 -1.271.04 1.04 1.04 1.041.93 1.93 1.93 1.93

-9.64 -9.64 -9.64 -9.64

'k_'t'lr'/rCt 'A't_,,Ir_r_' _'t_'ttt 'l_'lt'lrttt

11.19 11.19 11.19 11.19-1.63 -1.63 -1.63 -1.63

TOTAL CHANNEL

26 27 28 29 30 31

-1.27 -1.27 -1.27 -1.27 -1.27 -1.271.0_ 1.0_ 1.0_ 1.04 1.0A 1.041.93 1.93 1.93 1.93 1.93 1.93

-9.64 -9.64 -9.64 -9.64 -9.64 -9.64

11.19 11.19 11.19 11.19 11.19 11.19-1.63 -1.63 -1.63 -1.63 -1.63 -1.63

28

S,P.

1 ,292 .593 .634 .275 -1.17

NOAA-9 SCANNEROFFSETS FOR JANUARY 1987: LORGMAVECHANNELDAY OF MONTH-->

2 3 4 5 6 7 8 9 10 11 12 13 14 15

.29 .29 .29 .29 .29 .29 .29 .29 .29 .29 .29 .29 .29 -29

.59 .59 .59 .59 .59 .59 .59 .59 .59 .59 .59 .59 .59 .59

.63 .63 .63 .63 .63 .63 .63 .63 .63 .63 .63 .63 .63 .63•27 .27 .27 .27 .27 .27 .27 .27 .27 .27 .27 .27 .27 .27.11 -.56 1.30 1.31 1.15 .55 .21 -1.56 -1.51 -1.71 .37 -2.40 .42 -.22

6 -1.57 -.75 -.78 -.12 .05 .01 -.41 -.55 -1.15 -1.38 -1.27 -.48 -1.58 -.30 -1.157 -1.97 -1.05 -1.22 -1.21 -.74 -1.07 -1.21 -1.10 -1.64 -1.65 -1.47 -1.53 -1.91 -1.48 -1.418 -2.87 -1.70 -2.22 -2.68 -1.99 -2.47 -2.62 -2.15 -2.72 -2.45 -2.54 -2.89 -3.24 -2.90 -2.399 -1.97 -.79 -1.21 -2.17 -1.39 -1.76 -2.21 -1.23 -1.82 -1.60 -1,74 -2.47 -2.58 -2.21 -1.66

10 -2.30 -1.37 -1.68 -2.59 -1.96 -2.10 -2.78 -1.56 -2.17 -2.18 -2.24 -3.32 -3.05 -2.64 -2.0011 -2.50 -1.74 -2.23 -2.79 -2.33 -2.39 -2.97 -1.89 -2.50 -2.63 -2.59 -3.81 -3.39 -3.00 -2.1812 -2.59 -2.12 -2.60 -2.95 -2.61 -2.61 -2,95 -2.18 -2.85 -2.91 -3.02 -4.18 -3.53 -3.23 -2.3713 -2.71 -2.50 -2.79 -3.13 -2.80 -2.79 -2.96 -2.58 -3.09 -3,02 -3.36 -4.41 -3,56 -3.48 -2.5914 -2.48 -2.27 -2.40 -2.68 -2.49 -2.35 -2.46 -2.49 -2.74 -2.65 -3.01 -3.92 -3,11 -3.33 -2,2815 -2.70 -2,41 -2.45 -2.49 -2.50 -2.31 -2.39 -2.67 -2.52 -2.68 -3.04 -3.75 -3,02 -3.48 -2.3816 -2.77 -2.40 -2.39 -2.15 -2.44 -2.17 -2.23 -2.68 -2.22 -2,6?. -3.01 -3.45 -2.64 -3.48 -2.3917 -2.85 -2.41 -2.39 -1.97 -2.90 -2.73 -2.21 -2.90 -2.16 -2.71 -3.09 -3.34 -2.79 -3.50 -2.4618 -3.57 -3.08 -3.13 -2.70 -3.80 -3.79 -2.99 -3.76 -3.10 -3.49 -3.98 -4.12 -3.47 -4.13 -3.2519 -3.41 -2,99 -3.02 -2.58 -3.51 -3.78 -2.99 -3.65 -3,32 -3.60 -4.08 -4.04 -3.33 -3.97 -3.2320 -3.91 -3.55 -3.54 -3.07 -3.64 -4.00 -3.64 -4.21 -4.14 -4.59 -4.88 -4.55 -3,78 -4.44 -3.8821 -4.14 -3.81 -3.65 -3.15 -3,61 -3.76 -3.92 -4.52 -4,27 -5.06 -5.36 -4.56 -3.94 -4.57 -4.?.322 -4.35 -4.00 -3.76 -3.28 -3.86 -3.77 -4.25 -4.86 -4.07 -5.38 -5.79 -4.51 -4.14 -4.61 -4.5723 -4.44 -4.14 -3.79 -3.34 -3.93 -3.94 -4.47 -5,07 -4.01 -5.36 -5.92 -4.42 -4.29 -4.67 -4.7724 -4.49 -4.27 -3.88 -3.38 -3.95 -4.00 -4.52 -5.11 -3.97 -5.02 -5.69 -4.40 -4.44 -4.72 -4.8825 -4.69 -4.49 -4.21 -3.56 -4.08 -4.16 -4.84 -5.14 -4.13 -5.01 -5.61 -4.56 -4.66 -4.86 -5.0726 -4.64 -4.40 -4.27 -3.52 -4.02 -4.04 -4.74 -4.96 -4.11 -4.71 -5.27 -4.43 -4.58 -4.81 -5.0027 -4.66 -4.44 -4.46 -3.60 -4.19 -4.02 -4.89 -5.00 -4.32 -4.72 -5.18 -4.49 -4.61 -4.98 -5.1228 -4.67 -4.53 -4.63 -3.70 -4.36 -4.06 -4.92 -5.01 -4.53 -4.83 -5.20 -4.54 -4.60 -5,11 -5.2529 -4.22 -4.26 -4,39 -3.44 -4.03 -3.73 -4.50 -4.65 -4.30 -4,66 -4.97 -4.24 -4.24 -4,76 -5.0230 -4.39 -4.58 -4.73 -3.81 -4.31 -4.00 -4.74 -4.96 -4.58 -5.10 -5.43 -4.53 -4,60 -4.99 -5.3131 -4.02 -4.27 -4.50 -3.52 -4.04 -3.70 -4.39 -4.61 -4.22 -4.86 -5.22 -4.17 -4,30 -4.63 -4,9332 -3.53 -3.70 -4.04 -3.07 -3.58 -3.19 -3.89 -4.07 -3.78 -4,43 -4.83 -3.72 -3.89 -4.07 -4.4733 -3.23 -3,42 -3.78 -2.84 -3.32 -2.88 -3.58 -3.71 -3.54 -4.13 -4.51 -3.44 -3,68 -3,70 -4.1234 -2.99 -3.18 -3.56 -2.59 -3.07 -2.63 -3.23 -3,30 -3.36 -3,89 -4.32 -3.19 -3.51 -3.35 -3.6935 -2.26 -2.48 -2.89 -1.92 -2,40 -1,97 -2.53 -2,50 -2.65 -3.22 -3.59 -2.41 -2.93 -2.57 -2.8736 -1.73 -2.07 -2.36 -1.56 -2.10 -1.63 -2,13 -2.05 -2.23 -2.86 -3.06 -1.92 -2.52 -2.12 -2.4037 -1.30 -1.70 -1,84 -1.28 -1.79 -1.32 -1.68 -1.61 -1.96 -2.56 -2.59 -1,55 -2.06 -1.?0 -1.9538 -.95 -1.41 -1.37 -1.06 -1.50 -1,14 -1.28 -1.14 -1.76 -2.35 -2.22 -1.19 -1.56 -1.32 -1.5139 -.46 -.97 -.82 -.64 -.93 -.60 -.80 -.56 -1.34 -1.91 -1.63 -.83 -1.05 -.73 -.8940 -.33 -.94 -.75 -.56 -.73 -.41 -.79 -.50 -1.27 -1.62 -1.42 -.91 -.98 -,51 -.7141 .32 -.40 -.10 .04 -.05 .23 -.29 .11 -.65 -.91 -.73 -.32 -.27 .19 -.0542 .74 -.03 .26 .37 .39 .61 .04 .55 -.17 -.47 -.32 .13 .17 .60 .2643 .82 .07 ,30 .34 .52 .06 .03 .59 -.03 -.38 -.35 .29 .27 .66 .2444 1.06 .39 ,56 .50 .81 .87 .34 .75 .25 -.15 -,11 .66 .50 .89 .5345 1.36 .85 .95 .88 1.18 1.18 .93 1.06 .61 ,17 ,35 .98 ,77 1.26 ,9446 1.62 1.24 1.38 1.13 1.54 1.51 1.40 1.40 ,93 .54 .68 1.24 .99 1.55 1.2347 1.33 1.09 1.23 .81 1.36 1.33 1.34 1.32 .82 ,51 .41 .99 .81 1.30 1.0048 1.45 1.42 1.62 1.10 1.71 1.66 1.67 1.71 1.12 1.02 .67 1.21 1.14 1.61 1.3249 1.17 1.31 1.61 1.02 1.61 1.54 1.56 1.64 1.00 1.06 .63 1.00 1.09 1,48 1.1850 .95 1.31 1.61 .94 1.57 1.47 1.53 1.54 1.08 1.11 .77 .94 1.06 1.32 1.0251 .95 1.62 1.91 1.12 1.77 1.67 1.70 1.55 1.32 1.35 1.25 1.11 1.20 1.31 1.1052 .95 1.69 2.04 1.10 1,78 1.74 1.70 1.50 1.39 1.39 1.56 1.11 ,97 1.18 1.0053 .75 1.45 1.82 .95 1.53 1.42 1.48 1.31 1.16 .99 1.45 .93 .61 .82 .7354 .56 1.13 1.45 .70 1.08 .91 1.18 1.16 .60 .48 1.02 ,64 ,22 .35 .5655 .80 1.45 1.51 .95 1.14 .87 1.20 1.45 .84 .66 1.16 .69 .31 .42 .6556 -.28 .61 .35 -.06 -.05 -.34 -.13 .39 -.21 -.57 .09 -.53 -.72 -.80 -.6157 -.74 .17 -.29 -.70 -.70 -.86 -.72 -.15 -.41 -1.49 -.73 -1.29 -1.19 -1.34 -1.2358 -1.37 -.84 -1.32 -1.52 -1.36 -1.70 -1.42 -1.22 -1.14 -2.45 -1.99 -2.37 -2.06 -2.09 -1.9959 -2.12 -2.17 -2.63 -2.53 -2.28 -2.42 -2.37 -2.62 -2.12 -3.21 -3.28 -3.34 -2.80 -2.98 -2.5460 -7.92 -9.01 -8.64 -9.74 -9.72 -9.34 -9.07 -9.13 -6.91 -8.40 -8.39 -8.72 -6.22 -8.54 -7.8961 .83 .83 .83 .83 .83 .83 .83 .83 .83 .83 .83 .83 .83 .83 .8362 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00

29

S.P. 16

1 .292 .593 .634 .275 - .976 -.997 -1.498 -2.599 -1.75

10 -2.0811 -2.2312 -2.4013 -2.5214 -2.2115 -2.3316 -2.3317 -2.3518 -3.1119 -3.0520 -3..5621 -3.7222 -3.9423 -4.1324 -4.2525 -4.5026 -4.4927 -4.5428 -4.5529 -4.2830 -4.6531 -4.3532 -3.9133 -3.7034 -3.4735 -2.7736 -2.3837 -2.0438 -1.7539 - 1.2640 -1.2041 - .6842 - .3143 - .2044 .1245 .6246 1.0747 .9548 1.2449 1.1250 1.1051 1.3252 1.5253 1.4654 1.2955 1.5356 .3457 -.1858 -.9759 - 1.9460 -6.7361 .8362 .00

17

.29

.59

.63

.271.35

.00- .67

-1.98-1.56-2.32-2.81-3.02-3.23-2.&B-2.92-2.81-2.77-3.42-3.22-3.64-3.76-3.99-4.08-4.11-4.29-4.16-4.17-4.21-3.92-4.26-3.99-3.47-3.20-2.96-2.28-1.84-1.45-1.05

- .53-.49

.05.39.47.74

1.191.541.271.581.511.511.841.971.831.631.84

.68".14

-1.47-2.79-8.85

.83

.00

18

.29

.59

.63

.27- .91-.37- .67

-1.80-1.09-1.67-2.21-2.62-3.00-2.77-2.77-2.64-2.58-3.17-3.03-3.55-3.76-4.00-4.14-4.25-4,53-4.53-4.63-4.69-4._-4.?9-4.46-3.90-3.52-3,14-2.34-1.91-1.53-1.17

-.70

".69

".09

.40

.59

.941.451.911.802.192.112.042.312.392.191.952.14

.87

.08

-2.10-6.71

.83

.00

3O

NOAA-9 SCANNEROFFSETS FOR JANUARY 1987: SHORTWAVECHANNELDAY OF MONTH -->

S.P. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

1 -.11 -.11 -.11 -.11 -.11 -.11 -.11 -.11 -.11 -.11 -.11 -.11 -.11 -.11 -.112 .32 .32 .32 .32 .32 .32 .32 .32 .32 .32 .32 .32 .32 .32 .323 .49 .49 .49 .49 .49 .49 .49 .49 .49 .49 .49 .49 .49 .49 .494 -4.09 -4.09 -4.09 -4.09 -4.09 -4.09 -4.09 -4.09 -4.09 -4.09 -4.09 -4.09 -4.09 -4.09 -4.095 .63 .63 .60 .69 .72 .71 .76 .70 .78 .53 .37 .64 .55 .65 .636 .74 .74 .71 .80 .83 .82 .86 .79 .90 .70 .48 .75 .66 .75 .747 .40 .39 .37 .45 .47 .46 .50 .45 .56 .39 .14 .38 .33 .40 .408 .76 .74 .72 .79 .82 .80 .85 .80 .92 .76 .52 .73 .69 .75 .'?'59 .81 .80 .79 .86 .88 .86 .91 .86 .97 .82 .58 .78 .74 .81 .80

10 .43 .40 .43 .48 .49 .49 .52 .47 .57 .43 .18 .36 .]4 .41 .4111 .74 .71 .72 .77 .78 .77 .83 .78 .88 .74 .52 .69 .67 .73 .T212 .72 .67 .70 .72 .74 .73 .80 .75 .88 .72 .50 .66 .68 .71 .7013 -.11 -.16 -.12 -.11 -.10 -.10 -.03 -.09 .03 -.10 -.36 -.20 -.16 -.11 -.1214 .14 .11 .14 .18 .19 .19 .24 .17 .26 .14 -.12 .06 .05 .15 .1415 .17 .13 .14 .20 .20 .20 .26 .19 .28 ,14 -.12 .08 .07 .18 .1716 -.24 -.27 -.27 -.22 -.21 -.21 -.15 -.22 -.12 -.26 -.54 -.32 -.32 -.23 -.2417 .09 .06 .06 .11 .18 .17 .19 .12 .21 .06 -.21 .01 .01 .11 .0918 .11 .09 .08 .14 .15 .12 .21 .14 .24 .07 -.20 .03 .03 .12 .1119 -.28 -.29 -.32 -.24 -.22 -.27 -.18 -.25 -.13 -.29 -.60 -.36 -.36 -.26 -.2920 .09 .09 .07 .13 .16 .15 .18 .11 .23 .07 -.22 .00 .01 .10 .0721 .09 .10 .10 .13 .15 .14 .18 .11 .20 .02 -.23 .01 .02 .09 .0822 - .]4 - .32 -.35 - .30 - .30 - .30 - .23 - .32 - .23 - .42 -.68 - .40 - .41 - .33 - .3523 .02 .03 .01 .05 .06 .06 .12 .03 .12 -.12 -.35 -.04 - .05 .03 .0124 .05 .07 .05 .09 .09 .09 .14 .06 .15 -.01 -.31 .01 -.01 .06 .0425 - .34 - .31 -.]4 - .31 - .30 - .29 -.22 -.32 - .23 - .36 -.65 - .37 - .39 -.32 -.3526 .03 .06 .02 .05 .06 .07 .14 .04 .14 .02 -.28 -.01 -.03 .05 .0127 .06 .10 .06 .08 .09 .09 .16 .07 .16 .06 -.23 .02 .00 .07 .0428 - .33 - .28 - .33 - .31 - .31 - .31 - .24 - .32 - .23 - .32 - .61 - .36 - .39 - .32 - .3529 .06 .11 .06 .08 .08 .08 .16 .07 .16 .06 -.23 .01 .00 .07 .0330 .11 .16 .12 .13 .12 .12 .20 .11 .19 .09 -.20 .04 .03 .11 .0731 -.27 -.20 -.27 -.25 -.26 -.27 -.17 -.26 -.18 -.29 -.56 -.32 -.33 -.25 -.3032 .09 .15 .09 .08 .07 .06 .16 .06 .17 .05 -.24 -.01 .02 .10 .0633 .00 .07 .03 -.01 -.04 -.04 .06 -.04 .05 -.05 -.37 -.14 -.08 .02 -.02]4 - .38 - .32 - .33 - .38 - .40 - .40 - .31 - .42 - .36 - .43 - .78 - .54 - .50 - .36 - .4035 -.04 .04 .00 -.05 -.07 -.08 .02 -.08 -.01 -.09 -.38 -.17 -.12 -.01 -.0536 .03 .10 .05 .01 -.01 -.01 .08 -.01 .05 -.05 -.31 -.11 -.07 .05 .0137 - .30 - .23 - .29 - .32 - .34 - .35 - .26 - .]4 - .28 - .39 - .65 - .43 - .41 - .29 - .3338 .09 .17 .10 .08 .06 .04 .13 .04 .10 .00 -.27 -.05 -.05 .09 .0639 .13 .22 .14 .12 .11 .10 .17 .09 .15 .07 -.25 .03 .00 .13 .1040 -.18 -.10 -.17 -.20 -.21 -.23 -.14 -.23 -.17 -.26 -.59 -.29 -.33 -.19 -.2241 .23 .30 .26 .21 .20 .19 .29 .19 .23 .13 -.23 .10 .05 .21 .1942 .23 .34 .24 .21 .20 .18 .28 .19 .25 .13 -.18 .15 .09 .22 .2043 -.14 -.02 -.12 -.17 -.17 -.18 -.09 -.18 -.12 -.23 -.52 -.23 -.29 -.16 -.1844 .21 .]4 .24 .18 .19 .17 .26 .17 .24 .12 -.16 .10 .05 .19 .1745 .22 .]4 .26 .20 .21 .19 .28 .18 .25 .13 -.16 .10 .06 .20 .1846 -.16 -.06 -.12 -.18 -.17 -.19 -.12 -.20 -.13 -.24 -.53 -.29 -.33 -.19 -.2047 .19 .28 .22 .17 .19 .17 .23 .15 .22 .11 -.18 .04 .00 .16 .1548 .22 .31 .25 .21 .23 .21 .27 .19 .27 .14 -.14 .07 .03 .19 .1849 -.13 -.04 .11 -.14 -.11 -.14 -.08 -.16 -.07 -.19 -.49 -.26 -.33 -.16 -.1750 .26 .]4 .29 .26 .29 .27 .32 .24 .32 .20 -.14 .11 .04 .23 .2251 .23 .]4 .25 .23 .27 .25 .28 .21 .30 .19 -.13 .10 .03 .22 .2052 -.12 -.01 -.11 -.12 -.08 -.10 -.08 -.14 -.05 -.17 -.48 -.27 -.33 -.12 -.1653 .80 .90 .81 .86 .90 .87 .91 .84 .83 .72 .40 .65 .51 .81 .7954 1.16 1.25 1.18 1.17 1.20 1.20 1.25 1.19 1.26 1.12 .81 1.02 .99 1.16 1.1455 .82 .89 .84 .83 .87 .87 .88 .84 .91 .77 .47 .67 .63 .79 .8056 1.16 1.22 1.18 1.17 1.21 1.21 1.21 1.17 1.26 1.12 .81 1.01 .95 1.12 1.1357 1.17 1.23 1.20 1.19 1.23 1.22 1.22 1.19 1.28 1.16 .86 1.02 .96 1.13 1.1558 .79 .85 .82 .81 .84 .84 .84 .80 .90 .81 .53 .65 .58 .76 .7859 1.11 1.15 1.13 1.12 1.17 1.16 1.16 1.13 1.22 1.17 .87 .97 .90 1.08 1.1160 1.10 1.14 1.11 1.10 1.14 1.14 1.15 1.11 1.21 1.16 .86 .96 .90 1.08 1.1161 3.05 3.05 3.05 3.05 3.05 3.05 3.05 3.05 3.05 3.05 3.05 3.05 3.05 3.05 3.0562 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00

31

S.P. 16 17 18

1 -.11 -.11 -.112 .32 .32 .523 .49 .49 .494-4.09 -4.09 -4.095 .57 .72 .416 .68 .83 .547 .34 .49 .208 .69 .B4 .559 .75 .90 .60

10 .34 .50 .2011 .67 ,81 .5212 .66 .77 .5113 -.17 -.05 -.3314 .07 .23 -.0915 .09 .25 -.0816 -,31 -.17 -.4817 .02 .17 -.1618 .03 .19 -.1319 -.36 -.20 -.5220 .01 .17 -.1521 .01 .17 -.1422 -.42 -.25 -.5723 -.07 .10 -.2224 -.04 .14 -.1925 -.42 -.25 -.5726 -.06 .11 -.2127 -.04 .14 -.1828 -.42 -.25 -.5729 -.04 .14 -.1830 -.01 .18 -.1631 -.]7 -.19 -.5132 -.01 .17 -.1633 -.09 .09 -.2634 -.49 -.28 -.6735 -.12 .06 -.2936 -.06 .13 -.2237 -.40 -.21 -.5538 -.01 .18 -.1739 .04 .22 -.1240 -.29 -.09 -,4641 .09 .32 -,0942 .12 .32 -,0343 -.25 -.06 -.3944 .10 .29 -.OZ,45 ,11 .30 -.0346 -.27 -.08 -.4147 .08 .27 -.0748 .11 .31 -.0349 -.24 -.04 -.3950 .14 .36 -.0451 .13 .33 -.0252 -.23 -.02 -.3853 .66 .92 .4954 1.05 1.26 .8855 .69 ,90 .5556 1.03 1.23 .8857 1.05 1.25 .9158 .68 .87 .5459 1.00 1.19 .8660 1.01 1.20 .8761 3.05 3.05 3.0562 .00 ,00 .00

NOAA-9 SCANNEROFFSETS FOR JANUARYDAY OF NONTH "->

19 20 21 22 23 24

SHORTWAVECHANNEL

26 27 28 29 30 31

32

APPENDIX C

NOAA-10 SCANNER OFFSET TABLES

The term "S.P." in the following table means scan position. All offsets have unit watts per square

meter per steradian.

33

NOAA-10 SCN_4E'R OFFSETS

(_.I_,NN[J_AZldUTH L_(_.[ : 38 E_tL"['S)

5.P. TOTAL LW SW

1 0.66 0.29 0.43

2 0.62 0.58 0.13

3 0.77 0.7 -0.05

4 1 0.82 0.99

5 -1.16 -2,88 0.08

6 -0.23 -1.22 0.16

7 0.4 -0.21 1.0 I

8 1.04 0.24 0.41

9 1.64 0.47 0.43

10 1.55 0.45 1.26

11 1,6 0.41 0.52

12 1.57 0.16 0.54

13 1.42 0.06 1.36

14 0.96 -0.47 0.62

15 1.11 -0.73 0.51

16 0.85 -I 1,19

17 0.74 -1.28 0,41

18 1.08 -1,37 0,35

19 0.31 -2 1.07

20 0.07 -2.37 0.3

21 0.08 -2,67 0.09

22 -0.47 -3.19 0.68

23 -0.51 -3.44 -0.06

24 -0.38 -3.69 -0.08

25 -0.56 -3.93 0.81

26 -0.54 -4.09 0.01

27 -0.29 -4.18 -0.02

28 -0.34 -4.2 0.87

29 -0.29 -4.29 0.1

30 -0.2 -4,47 0.08

31 -0.44 -4,88 0.84

32 -0.48 -4.69 0.11

33 -0.2 -4.67 0.08

34 _0.13 -4.48 0.84

35 -0,12 -4.42 0.07

36 0.16 -4.29 0.07

37 -0,07 -4.28 0.89

38 -0.11 -4.23 0.14

39 0.38 -3.95 0.12

40 0.08 -3.94 0.9 I

41 -0.01 -3.9 0

42 0.15 -3,86 -0.15

43 0.05 -3.72 0.66

44 -0.18 -3.73 -0.07

45 0.09 -3.51 0.04

46 0.41 -3.11 0.8

47 0.29 -3.23 0.04

48 0.65 -3.05 0.11

49 0.6 -2.98 0.87

S0 0.38 -3,12 0.11

51 0.32 -3,22 0.06

52 0.36 -3.1 0.84

53 0.11 -3.19 0.09

54 0.35 -3.17 -0.03

55 0.26 -3.06 0.72

56 0.38 -2.91 -0.04

57 0.86 -2.8 0.03

58 0.25 -2.69 0.79

59 0.73 -1.46 0.43

60 1.19 0.04 0.96

61 1.26 1.31 0.96

•6"E "£':'5"5 _.-'15

35

PRECEDING PAGE BL_itK i_iU| FILMF.._

_OAA-10 SCA.q, tll OF'PJ_TS

(SCANN£R AZMJ_I J,_l.£ = ZERO 0£GIEES)

S.P. TOT/_L LW SW

1

2

3

4

5

G

7

8

9

I0

11

12

13

14

15

16

17

18

19

20

21

22

23,

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

.53

54

55

56

57

58

59

6O

61

62

0,26

0.62

0.77

1

-0.99

-0.3

-0.47

-0.82

1.62

2.07

1.6

0.97

0.82

1.16

0.72

0.46

0.44

0.92

0,84

1.12

1.08

0.86

0.88

0.97

1.09

1.15

0.98

.12

.18

.36

.24

35

.37

.22

.25

1.61

1.7

1.49

1.77

1,46

1.09

133

1.87

1.9

2.18

2.22

2.39

2,52

2.17

1.63

1.5

1.75

1.68

1.79

1.21

1.15

134

0.62

0.25

-5.46

1.26

4.55

0.05 0.23

0.58 0.15

0.7 -0.05

0.82 0.99

-0.99 -0.41

-0,67 -0.37

-0.45 0.45

-0,58 -0.24

O.93 -0.27

1.36 0.49

1.07 -0.31

03 -0.34

0.48 0.5

0.65 -0.32

0.22 -0,39

0,12 0.37

0.08 -0,39

0.26 -0.42

0.27 0.32

0,47 -0.44

0.35 -0.64

0,27 -0.01

0.31 -0.77

0.3 -0.76

0,51 0.19

0.63 -0.54

0.49 -0.5

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APPENDIX D

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Form Approved

Report Documentation Page o, No.oTo,-o,

col_n of i_iofl, lrlcllxliltfl s_s for NKlOOng this Ogro(_, 10 w_gnln_ _qUanm O_,.M_, _,=. '_ :,,, ."'_' _.__.'_"-"r'/__." .--.'." 'T,-"T ' "T-._'_._h_

Davis Highway, Sutle 1204, Adin_ocl;VA 2220_4302, att¢] to th Office of Management and Budget, Pape_wodt Reduc_on e'roject o/'o4-Oll=Va), wumng_on, t.x., .....

1. AGENCY USE ONLY (Leave b_ank) 2. REPORT DATE 3. REPORT TYPE AND DATES COVERED

July 1993 Contractor Report

4. TITLE AND SUBTITLE 5. FUNDING NUMBERS

Radiometer Offsets and Count Conversion Coefficients for the Earth Radiation

Budget Experiment (ERBE) Spacecraft for the Years 1987, 1988, and 1989

s. AUTHOR(S)Jack Paden, bhirendra K. Pandey, Joseph C. Stassi,

Robert Wilson, William Bolden, Susan Thomas, and

M. Alan Gibson7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS

Science Applications International Corporation (SAIC)

One Enterprise Parkway, Suite 250

Hampton, Virginia 23666-5845

9. SPONSORIN_ITORING AGENCY NAME(S) AND ADDRESS(ES)

National Aeronautics and Space Administration

Langley Research Center

Hampton, VA 23681-0001

11. SUPPLEMENTARY NOTES

Langley Technical Monitor: Robert B. Lee IIIFinal Report

12a. DISTRIBUTION/AVAILABILITY STATEMENT

Unclassified - Unlimited

NAS 1 - 19570

665-45-20-01

8. PERFORMING ORGANIZATIONRE PORT NUMBE R

SAIC(EARTH) - 92/01

10. SPONSORING/MONITORINGREPORT NUMBER

NASA CR-191489

12B DISTRIBUTION CODE

Subject Category 47

13. ABSTRACT (Maximum 200 Words)

This document contains a compendium of the ground and in-flight scanner and nonscanner offsets and count conversion

(gain) coefficients used for the Earth Radiation Budget Experiment (ERBE) production processing of data from the ERBSsatellite for the period from 1 January 1987 to 31 December 1989; for the NOAA-9 satellite, for the month of January 1987;

and for the NOAA-10 satellite, for the period from 1 January 1987 to 31 May 1989.

14. SUBJECT TERMS

Earth Radiation Budget Experiment, Radiometric Sensors, Calibrations,Count Conversion Coefficients, Offsets

17. SECURITY CLASSIFICATION 18. SECURITY CLASSIFICATIONOF REPORT OF THIS PAGE.

Unclassified Unclassified

NSN 7540-01-280-5500

19. SECURITY CLASSIFICATIONOF ABSTRACT

J15. NUMBER OF PAGES

213

16. PRICE CODE

A10

20. LIMITATION OF ABSTRACT

Standard Form 298 (Rev. 2089)Prescribed by ANSI Std. Z39-18298-10"2