igarss 2011, vancouver / canada, july 24 – 29, 2011 the joint terrasar-x/tandem-x mission planning...
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IGARSS 2011, Vancouver / Canada , July 24 – 29, 2011
The joint TerraSAR-X/TanDEM-X Mission Planning SystemF. Mrowka, M. P. Geyer, C. Lenzen, A. Spörl, T. Göttfert, E. Maurer,
M. Wickler, B. Schättler
IGARSS 2011, Vancouver, 29-July-2011
IGARSS 2011, Vancouver / Canada The Joint TerraSAR-X / TanDEM-X Mission Planning System Slide 2
Overview
The TanDEM-X Mission Planning Challenges
Two Satellites and Two Missions
Mutual Illumination Risks
Sync-Warning Handling
From the TerraSAR-X (TSX-1 Satellite only: MPS-tsx) to the TanDEM-X (both satellites/both Missions: MPS-tsm-tdm) Mission Planning System
Before Launch
Commissioning Phase
Operational Phase
Outlook
IGARSS 2011, Vancouver / Canada The Joint TerraSAR-X / TanDEM-X Mission Planning System Slide 3
Challenges: Two Satellites – Two Missions
IGARSS 2011, Vancouver / Canada The Joint TerraSAR-X / TanDEM-X Mission Planning System Slide 4
Challenges: Two Satellites – Two Missions
TSX-1CmdGenConstraint-Check, etc
Order-Ingestion
TSM-R2CC
Order-Ingestion
TSM-Order-
Ingestion
MPS-tsx
MPSDB
IGARSS 2011, Vancouver / Canada The Joint TerraSAR-X / TanDEM-X Mission Planning System Slide 5
Challenges: Two Satellites – Two Missions
MPS-tsm-tdm
TSX-1CmdGen
TSM-R2CC
TDX-1CmdGen
TSM-Order-
Ingestion
MPSDB
Constraint-Check, etc
IGARSS 2011, Vancouver / Canada The Joint TerraSAR-X / TanDEM-X Mission Planning System Slide 6
Challenges: Two Satellites – Two Missions
IGARSS 2011, Vancouver / Canada The Joint TerraSAR-X / TanDEM-X Mission Planning System Slide 7
Challenges: Two Satellites – Two Missions
MPS-tsm-tdm
TSX-1CmdGen
TSM-R2CC
TDX-1CmdGen
TSM-Order-
Ingestion
TDM-Order-
Ingestion
TDM-R2CC
TAP
MPSDB
IGARSS 2011, Vancouver / Canada The Joint TerraSAR-X / TanDEM-X Mission Planning System Slide 8
Challenges: Mutual Illumination RisksInput provided every 12h by the FDS
For nominal TerraSAR-X-Acquisitions:
TSX-1 or TDX-1 is selected at first in respect to the exclusion zones
For nominal TanDEM-X Acquisitions:
Selection of the active Satellite at first in respect to the exclusion zones
0°
30°
50°
65°
“TDX may not transmit in
desc. orbit”
exclusionzones
(example)
TSX-1
TDX-1
“TSX may not transmit in asc. orbit”
TSX-1 TDX-1
IGARSS 2011, Vancouver / Canada The Joint TerraSAR-X / TanDEM-X Mission Planning System Slide 9
Challenges: Sync-Warnings – The course timing
Sync-Warning-Opportunity 1Sync-Warning-Opportunity 2
TSX-DT
t
SWOC-Result
SWmax. 53min
SWTDX
TSX
IGARSS 2011, Vancouver / Canada The Joint TerraSAR-X / TanDEM-X Mission Planning System Slide 10
Challenges: Sync-Warnings – The precise timing
TDMDT
t
SW
SWTDMDT
TDX
TSX
DataTake-StartTime-Correction Disabled
Disabled Disabled
Disabled
TSMDT
Enabled
IGARSS 2011, Vancouver / Canada The Joint TerraSAR-X / TanDEM-X Mission Planning System Slide 11
Challenges: Sync-Warnings - Example
IGARSS 2011, Vancouver / Canada The Joint TerraSAR-X / TanDEM-X Mission Planning System Slide 12
Challenges
Power-Thermal-ModelMPS-tsx: Orbit-Usage-Model for one Orbit onlyMPS-tsm-tdm (To fulfill the demanding TanDEM-X needs):
Thermal-Model: more then 30 independent accumulating time-frames for modeling data acquisition and data downlinkPower-Model: elaborated Power-Usage-Model was implemented to predict the on-board battery-charge-level (consumer: Instrument incl. several Warm-Up-Levels, X-Band-Downlink-Transition, etc. and supply: taking into account eclipse times, satellite-attitude. etc.)
Enhanced priority concept implements a flexibility for GlobalDEM-acquisitionsDown-Link-Delay for TDX-1 and Downlink from both satellites to one station contact
=> MPS-tsm-tdm has the same availability and performance requirements as the MPS-tsx
IGARSS 2011, Vancouver / Canada The Joint TerraSAR-X / TanDEM-X Mission Planning System Slide 13
MPS-tsx to MPS-tsm-tdm: Before TDX-1Launch
TSX-1CmdGenConstraint-Check, etc
Order-Ingestion
TSM-R2CC
Order-Ingestion
TSM-Order-
Ingestion
MPS-tsx MPSDB
MPS-tsm-tdm
TSX-1CmdGen
TSM-R2CC
TDX-1CmdGen
TSM-Order-
Ingestion
TDM-Order-
Ingestion
TDM-R2CC
TAP
MPSDB
Space-Craft-Simulator
On-ground
After TDX-1 Launch ?
TSX-1
TDX-1
IGARSS 2011, Vancouver / Canada The Joint TerraSAR-X / TanDEM-X Mission Planning System Slide 14
MPS-tsx to MPS-tsm-tdm: Commisioning Phase
June‘10 July‘10 Aug‘10 Sep‘10 Oct‘10 Nov‘10 Dec‘10
EarlyOrbitPhase
Grg SegmentCheckout
Bi-static Commissioning Phase
20 km FormationTDX Orbit Drift16.000 km 20 km Close Helix-Formation 300-400 mLaunch
21 June
First SAR Image 24 June (MET +3.6)
First DEM 16 July (MET +25)
TDX Monostatic Comm. Phase
6 Months Commissioning Phase
First close formation DEM 19 October (MET +124)
First bi-static SAR image 8 August (MET +48)
20 km FormationTDX Orbit Drift16.000 km 20 km
IGARSS 2011, Vancouver / Canada The Joint TerraSAR-X / TanDEM-X Mission Planning System Slide 15
MPS-tsx to MPS-tsm-tdm: Commissioning Phase
Mono-Static-Commissioning-PhaseMPS-tsx:
Minor modification to identify TanDEM-X acquisition requests
Ground-Segment ready to support two mission planning systems
Routing of nominal TerraSAR-X Orders to MPS-tsx and specifically ordered ones for TDX-1 to MPS-tsm-tdm TSX-1 part of TanDEM-X orders need to be ordered as System-Orders via MPS-tsx
MPS-tsm-tdm:TSX-1 commands verified on space-craft-simulator (occasionally)
PGS
TanDEM Orders
TerraSAR-X User Orders
TanDEM Production Controlpc-tdm-acq
TerraSAR Production Controlpc-tsx
DIMSUser Information Services
(EOWEB)
TanDEM Mission Planning Interface
pi-tdm-mpi
TerraSAR TSX Mission Planning Interface
pi-tsx-mpi
MOS
Commissioning TanDEM / TerraSAR Mission Planning System
MPS-tsm-tdm
TDX SatelliteTSX Satellite
TSX Timeline with TerraSAR
Data Takes
TDX Timeline with TerraSAR and TanDEM (TDX
channel) Data Takes
TerraSAR-X System Orders
Operational TerraSAR Mission Planning System
MPS-tsx
TerraSAR TSX / TDX Mission Planning Interface
pi-tsx-tdx-mpi
Operational TerraSAR-X Orders
for TSX(incl. System Orders)
Commissioning TerraSAR-X Orders for TDX (and TSX)
(incl. System Orders)
TanDEM Orders(TSX and TDX)
TSX Timeline with TerraSAR and TanDEM (TSX channel) Data
Takes
On-Ground TSX Simulator
„New“ IOCS Request-to-Command-ConverterR2CC-tsm-tdm
IOCS Request-to-Command-ConverterR2CC-tsm
IOCS
Pursuit MonosticTanDEM Orders
TanDEM TSX Channel duplicated
to TerraSAR System Order
IGARSS 2011, Vancouver / Canada The Joint TerraSAR-X / TanDEM-X Mission Planning System Slide 16
MPS-tsx to MPS-tsm-tdm: Commisioning Phase
June‘10 July‘10 Aug‘10 Sep‘10 Oct‘10 Nov‘10 Dec‘10
EarlyOrbitPhase
Grg SegmentCheckout
Bi-static Commissioning Phase
20 km FormationTDX Orbit Drift16.000 km 20 km Close Helix-Formation 300-400 mLaunch
21 June
First SAR Image 24 June (MET +3.6)
First DEM 16 July (MET +25)
TDX Monostatic Comm. Phase
6 Months Commissioning Phase
First close formation DEM 19 October (MET +124)
First bi-static SAR image 8 August (MET +48)
IGARSS 2011, Vancouver / Canada The Joint TerraSAR-X / TanDEM-X Mission Planning System Slide 17
MPS-tsx to MPS-tsm-tdm: Commissioning Phase
PGS
TanDEM Orders
TerraSAR-X User Orders
TanDEM Production Controlpc-tdm-acq
TerraSAR Production Controlpc-tsx
DIMSUser Information Services
(EOWEB)
TanDEM Mission Planning Interface
pi-tdm-mpi
Upgraded TerraSAR TSX / TDX Mission Planning Interface
pi-tsx-mpi
MOS
Commissioning TanDEM / TerraSAR Mission Planning System
MPS-tsm-tdm
TDX SatelliteTSX Satellite
TSX Timeline with TerraSAR
Data Takes
TDX Timeline with TerraSAR and TanDEM (TDX
channel) Data Takes
TerraSAR-X System Orders
Operational TerraSAR Mission Planning System
MPS-tsx
TerraSAR TSX / TDX Mission Planning
Interfacepi-tsx-tdx-mpi
Operational TerraSAR-X Orders
for TSX(incl. System Orders)
Commissioning TerraSAR-X Orders
for TDX (incl. System Orders)
TanDEM Orders(TSX and TDX)
TSX Timeline with TerraSAR and TanDEM (TSX channel) Data
Takes
On-Ground TSX Simulator
„New“ IOCS Request-to-Command-ConverterR2CC-tsm-tdm
IOCS Request-to-Command-ConverterR2CC-tsm
IOCS
Close-Formation without full-operational MPS-tsm-tdm not possible:Sync-WarningsExclusion-Zones
Operationalisation of MPS-tsm-tdm:Switch of MPS-tsx
Routing of all TerraSAR-X orders to MPS-tsm-tdm
TSX-1 commands out of MPS-tsm-tdm sent to the TSX-1 satellite
IGARSS 2011, Vancouver / Canada The Joint TerraSAR-X / TanDEM-X Mission Planning System Slide 18
MPS-tsm-tdm: Operationalization / Close Formation Change
07.10.2010
For
ma-
tion change
2 3 4 5 6 7 8 9 10 11 1 2 3 4
MP
S-
tsm-tdm
Ope
ration-alisation
5 6 7 8 9 10 11
18.10.2010
W W W W
FF
R
W W
Kiru
na
Sync W
arn, ISL
05.10.2010
Cycle 8Cycle 6
TSX: extend. timeline
First tim
elines with updated
Gro
und Segm
ent
Cycle 7
1 2 3 4 5 6 7 8 9 10 11
29.10.2010
W W
NS
GInuvik
Statisitical D
Ts
TS
XX
DA
ST
SX
X D
AS
Statistical DTs
TS
XX
DA
S
TS
M R
elease on
2 Satellite
s
TS
XA
SM
Test Bi-
CP
TDX: operational DTs
W
TS
X E
xc
l. Zo
ne
Te
st
04.10.2010
26.09.2010
First bi-static image
IGARSS 2011, Vancouver / Canada The Joint TerraSAR-X / TanDEM-X Mission Planning System Slide 19
MPS-tsm-tdm: Bistatic Commisioning Phase
June‘10 July‘10 Aug‘10 Sep‘10 Oct‘10 Nov‘10 Dec‘10
EarlyOrbitPhase
Grg SegmentCheckout
Bi-static Commissioning Phase
20 km FormationTDX Orbit Drift16.000 km 20 km Close Helix-Formation 300-400 mLaunch
21 June
First SAR Image 24 June (MET +3.6)
First DEM 16 July (MET +25)
TDX Monostatic Comm. Phase
6 Months Commissioning Phase
First close formation DEM 19 October (MET +124)
First bi-static SAR image 8 August (MET +48)
IGARSS 2011, Vancouver / Canada The Joint TerraSAR-X / TanDEM-X Mission Planning System Slide 20
MPS-tsm-tdm: Full automatic operations
Since 2010-12-14 MPS-tsm-tdm is running full-automatic and is showing
Same or better performance and
A similar reliability as MPS-tsx!
Some Numbers
Number of .. MPS-tsx MPS-tsm-tdm
Constraints Around 100 Around 200
Datatakes (candidates) per day
Usually less then 500 Often more then 4000
Internal Profile-Pieces Usually less then 10 000 Often more then 100 000
Commands per day Usually less then 1000 Often more then 3000
IGARSS 2011, Vancouver / Canada The Joint TerraSAR-X / TanDEM-X Mission Planning System Slide 21
MPS-tsm-tdm: Operations
A 24h snap-shot of a command timeline. In this time frame were commanded: • 52 replays (27 TSX-1 and 25 TDX-1) in 33 different downlink contacts to 8 different ground stations• 98 acquisitions (47 on TSX-1 and 51 on TDX-1) comprising 26 TanDEM-X pairs• 31 Sync-Warnings
IGARSS 2011, Vancouver / Canada The Joint TerraSAR-X / TanDEM-X Mission Planning System Slide 22
Inuvik
O‘Higgins
Kiruna
Chetumal
TanDEM-X Ground Station Network
DLR Neustrelitz for TerraSAR-X
IGARSS 2011, Vancouver / Canada The Joint TerraSAR-X / TanDEM-X Mission Planning System Slide 23
MPS-tsm-tdm: Operations
IGARSS 2011, Vancouver / Canada The Joint TerraSAR-X / TanDEM-X Mission Planning System Slide 24
Outlook
Currently fixed Planning- and Command-Generationnominal time between last order reception and first possible downlink between 6 and 18 hours (except special short notice planning 1h))
event driven planning (just with order reception) and command generation, if confirmed uplink is demanded
Specific for optical sensors
Cloud-Forecast-Handling
Support of constellations
Generic Mission-Planning-System
IGARSS 2011, Vancouver / Canada The Joint TerraSAR-X / TanDEM-X Mission Planning System Slide 25
Outlook
Future Missions
FireBIRD (2013)
IR-Sensor
Two Satellites in Constellation
EnMAP (2015)
Hyper-Spectral-Imager
New Feature: Cloud-Handling
TerraSAR-X 2 (2015)
Probably with TSX-1 and TDX-1 in Constellation
Event-Driven-Planning – Short-Notice-Command-Generation
TanDEM-L (net 2019)
On-Board-Planning?
Mt. St. Helens, USA2010-08-13T01:54:09
IGARSS 2011, Vancouver / Canada The Joint TerraSAR-X / TanDEM-X Mission Planning System Slide 28
Power Modeling I
Energy conflict
Lost Values (unused energy)
Fill Level(state of charge)
Upper Limit (battery capacity)
Lower Bound
Conflict on fill level
Solar panels charging the battery
Battery full Energy consumption greater
than supplySolar panels charging the battery
Battery discharging
IGARSS 2011, Vancouver / Canada The Joint TerraSAR-X / TanDEM-X Mission Planning System Slide 29
Power Modeling II
Charge level without warm-up
Charge level with warm-up
Warm-up of RS1 instrument
Consumption profile
Charge level
IGARSS 2011, Vancouver / Canada The Joint TerraSAR-X / TanDEM-X Mission Planning System Slide 30
SSMM-Modelling
DL
1 T
DX
-1D
L1
TSX
-2
Datatake 1
Datatake 2
Datatake 3
Datatake 4
Datatake 5
Datatake 6
DL
1 T
SX-1
DL
1 T
DX
-2D
L1
TSX
-3D
L1
TD
X-3
Groundstation GS Groundstation
DL
1 T
SX-4
DL
1 T
DX
-4
DL
1 T
DX
-1
DL
1 T
DX
-2
DL
1 T
SX-5
DL
1 T
DX
-5
DL
1 T
DX
-3
DL
1 T
SX-6
DL
1 T
DX
-6D
L1
TD
X-4
DL
1 T
DX
-5D
L1
TD
X-6
TDX-1 memory
TSX-1 memory