FIRST INNER SOLAR SYSTEM RESULTSFROM THE

PAN-STARRS 1 TELESCOPE

Richard WainscoatUniversity of Hawaii, Institute for Astronomy

for the PS1 Science Consortium

FIRST INNER SOLAR SYSTEM RESULTSFROM THE

PAN-STARRS 1 TELESCOPE

Robert JedickeUniversity of Hawaii, Institute for Astronomy

for the PS1 Science Consortium

FIRST INNER SOLAR SYSTEM RESULTS FROM THEPAN-STARRS 1 TELESCOPE

2007

FIRST INNER SOLAR SYSTEM RESULTS FROM THEPAN-STARRS 1 TELESCOPE

2008

FIRST INNER SOLAR SYSTEM RESULTS FROM THEPAN-STARRS 1 TELESCOPE

2009

FIRST INNER SOLAR SYSTEM RESULTS FROM THEPAN-STARRS 1 TELESCOPE

2010

PS4

PS1prototype

3PI SURVEYING(original)

1st nighttracklet

r

2nd nighttracklet

g

3rd nighttracklet

i

TRACKsingle lunation

3PI SURVEYING(original)

FIRST LUNATION SECOND LUNATION

= 12 detections per derived object

REPORTED DETECTIONS

>100 NEOs

>70KOther

Stuff

REPORTED DETECTIONS

Heliocentric x (AU)

Helio

cent

ric y

(AU

)

PROBLEMS

• Too few new derived objects• No NEOs discovered

Camera Fill Factor

80%

physical

Camera Fill Factor

70%

overall

False Detections

2-100XHIGH

TRACKLET DETECTION EFFICIENCY

Vlim ≈21.5 (gri)≈67% efficiency

3PI SURVEYING(modified)

TRACKin a single lunation= 12 detections per derived object

1st night3-4 detection

tracklet

r gi

4th nighttracklet

3rd nighttracklet

r

2nd night3-4 detection

tracklet

ig

TRACKin a single lunation= 12 detections per derived object

1st night3-4 detection

tracklet

r gi

4th nighttracklet

3rd nighttracklet

r

2nd night3-4 detection

tracklet

ig

3PI SURVEYING(modified)

3-4 detectiontracklet

w w

2010 ST3ch

ip g

apch

ip g

ap

chip

gap

chip

gap

removed by air force

removed by air force

removed by air force

rem

oved

by

air f

orce

removed by air force

ST3 ORBIT & DISCOVERY

CIRCUMSTANCES@ Discovery≈0.1 AUV≈22

CharacteristicsH≈25 or D≈60m

MOID≈0.04AU

2NEO discoverie

s to date

WISE

#1LINEAR

#2

CSSG96

#3

CSS703

#4 Spacewatch

#5PS1F51

#62010 OBSERVATIONS

WISE LINEAR

CSSG96 CSS

703

Spacewatch

PS1F51

#1 #2

#3#4

#6#5

2010 NUMBERED OBJECTS

PS1F51

#4

WISE

LINEAR

CSSG96

CSS703

Spacewatch

#1

#6

#2

#5

#32010 UN-NUMBERED OBJECTS

Funding provided by:Air Force Research LaboratoryPS1 Science ConsortiumNASA NEOO Program