in-orbit commissioning phase: high level planning
DESCRIPTION
In-Orbit Commissioning Phase: High Level Planning. Changes from last issue. - Plan takes into account that 2 Nov 2009 is Monday Christmas holidays (from 24-Dec-09 till 2-Jan-10) have been included Weeks 24 and 25 have been removed accordingly - PowerPoint PPT PresentationTRANSCRIPT
1IOCP High Level Plan, 8 September 2009
In-Orbit Commissioning Phase:
High Level Planning
2IOCP High Level Plan, 8 September 2009
Changes from last issue
- Plan takes into account that 2 Nov 2009 is Monday
- Christmas holidays (from 24-Dec-09 till 2-Jan-10) have been included
- Weeks 24 and 25 have been removed accordingly
- Order of external calibration manoeuvres in Week 2 as proposed by CNES
- LO high rate (2 min) calibration only in Week 4 (lower rate later)
- Additional Dual vs Full-pol mode sky view in Week 7
- FTR Acquisition Criteria have been added
- Timelines for S-band and SADM effects have been added
- Slide number has been added
- Navigation buttons added to go from overall plan to weekly plan and back
3IOCP High Level Plan, 8 September 2009
Acronyms
IOCP In-Orbit Commissioning Phase
LEOP Launch and Early Orbit Phase
SODAP Switch-On and Data Acquisition Phase
4IOCP High Level Plan, 8 September 2009
IOCP Main Phases
The In-Orbit Commissioning Phase comprises 4 main phases:
- Launch and Early Orbit Phase (LEOP)
- Switch-On and Data Acquisition Phase (SODAP)
- MIRAS Payload Commissioning
- Pseudo-Operational Phase alternating dual and full-pol modes
5IOCP High Level Plan, 8 September 2009
IOCP Key Points
Four Key Points are proposed:
- KP0: Decision point to start the MIRAS Payload Commissioning
- KP1: Decision point to start the Pseudo-Operational Phase
- KP2: Decision point to define final calibration strategy
Evaluation of L1 & L2 data product quality, and release to SVRT
- KP3: Decision point to freeze calibration and operational mode
6IOCP High Level Plan, 8 September 2009
IOCP Main Phases
6 m
onths (27 weeks)
1 week
LEOP
SODAP
PAYLOAD
Dual-Full
Key Point
CW48 CW49 CW50 CW51
CW52 CW01 CW02
CW03 CW04 CW05 CW06
CW07 CW08 CW09 CW10
CW11 CW12 CW13 CW14
CW15 CW16 CW17 CW18
KP1
KP3
PLM Switch ON
LAUNCH
CW53
KP0
CW 45 CW 46 CW 47
XMAS (24-Dec till 2-Jan)
KP2
0
1
2
3
7IOCP High Level Plan, 8 September 2009
IOCP Main Phases
6 m
onths (27 weeks)
1 week
LEOP
SODAP
PAYLOAD
Dual-Full
Key Point
1 2 3 4
5 6 7
8 9 10 11
12 13 14 15
16 17 18 19
20 21 22 23
KP0
KP2
KP1
KP3
PLM Switch ON
XMAS (24-Dec till 2-Jan)
LAUNCH
5X
0
1
2
3
8IOCP High Level Plan, 8 September 2009
IOCP Time Line
The proposed IOCP time line features:
- Inclusion of all activities described in the Commissioning Plan
- Early generation of the first image (start of L1OP)
- Cold sky views (preceded by long calibration) every Tuesday
- Early start of pseudo-operational phase
- Quite regular weekly pattern
- Minimisation of instrument mode changes
- Evaluation of L1 & L2 data product quality, and release to SVRT by KP2
- Key Points on Wednesdays
9IOCP High Level Plan, 8 September 2009
IOCP Detailed Time-line
6 m
onths (27 weeks)
1 week
LEOP
SODAP
Default Mode
Dual Pol
Full Pol
Cold Sky View
Long Calibration
First Image
Thermal Stability
Electrical Stability
Key Point
LAUNCH
XMAS
1 2 3 4
5 6 7
8 9 10 11
12 13 14 15
16 17 18 19
20 21 22 23
5X
0
1
2
3
10IOCP High Level Plan, 8 September 2009
Summary of Cold Sky Views
Week Pointing Duration Target Mode Purpose
2
Inertial 2 min Galactic PolePlain Dual
Platform commissioning
Inertial 30 min Galactic PolePlain Dual
Platform commissioning
Zenith 1.1 orbit One full sky circlePlain Dual
Platform commissioning
3
Zenith 1.1 orbit One full sky circle Dual S-band RFI
Inertial Standard Galactic Pole Dual FTR Dual + NIR
Zenith 1.1 orbit One full sky circle Dual S-band RFI
4Inertial Standard Galaxy at boresight Dual Accuracy
Inertial Standard Galactic Pole Dual SADM
FTR is valid FTR is not valid – need for DPGS “manual” orchestration
11IOCP High Level Plan, 8 September 2009
Summary of Cold Sky Views
Week Pointing Duration Target Mode Purpose
5 Inertial Standard Moon in AF-FoV Dual X + S + STR RFI
6 Inertial Standard Galactic Pole Full FTR Full + NIR
7 Inertial Standard Galactic Pole Dual Dual vs Full
8 Inertial Standard Galactic Pole Dual NIR leakage
9 Inertial Standard Galactic Pole Dual FTR Dual + NIR
10-14-18-22 Inertial Standard Galactic Pole Full FTR Full + NIR
11-15-19 Zenith 1.1 orbit One full sky circle Dual NIR
12-16-20 Zenith 1.1 orbit One full sky circle Dual NIR
13-17-21 Inertial Standard Galactic Pole Dual FTR Dual + NIR
23 Zenith 1 half orbit Moon traversing AF-FoV Dual E2E Verification
FTR is valid FTR is not valid – need for DPGS “manual” orchestration
12IOCP High Level Plan, 8 September 2009
Summary of Cold Sky Views
6 m
onths (27 weeks)
1 week
Inertial < 1orbit FTR
Key Point
1 2 3 4
5 5X 6 7
8 9 10 11
12 13 14 15
16 17 18 19
20 21 22 23
Zenith Verifications
Zenith 1.1 orbit NIR
Inertial < 1orbit Verifications
LAUNCH
XMAS
0
1
2
3
13IOCP High Level Plan, 8 September 2009
First Calibration Time Line
Week Activity Output Calibration Progress
3
Long Calibration
PMS
FwF(0)
FwF shape
U-offsets
• LICEF calibration• FwF calibration
• Offset calibration (common LO)
External CalibrationFTR
(dual pol)
• Antenna Patterns Validation• Flat Target Response in Dual
• NIR calibration• Cold Sky LICEF calibration
Plain Dual Pol + LO cal LO phase
• LO phase time evolution
14IOCP High Level Plan, 8 September 2009
First Calibration Time Line
Week Activity Output Calibration Progress
4 - 5 Electrical Stability
Variation of:
PMS
FwF(0)
FwF shape
U-offsets
over temperature
• LICEF calibration• FwF calibration
• Offset calibration (common LO)
All above over temperature
DUAL POL MODE FIRST CALIBRATION COMPLETED
6 External CalibrationFTR
(full pol)• Flat Target Response in Full
FULL POL MODE FIRST CALIBRATION COMPLETED
15IOCP High Level Plan, 8 September 2009
First Calibration Time-line
L1PPL1PP start
L1L1OP start
DDual pol first calibration completed in
Week 5
F Full pol first calibration completed in
Week 6
DPGS L1+L2+BUFR
6 m
onths (27 weeks)
1 week
1 2 3 4
5 6 7
8 9 10 11
12 13 14 15
16 17 18 19
20 21 22 23
LAUNCH
XMAS
5X
L1PP
L1+DPGS
D F
0
1
2
3
16IOCP High Level Plan, 8 September 2009
PLM Switch ON
LEOP
LEOP comprises the launch, orbit injection and platform commissioning.
During LEOP the payload is OFF (except for a short partial switch-on just before antenna deployment).
LEOP is expected to be less than 2.5 weeks long.
LEOP is described in Section 4.1 of the Commissioning Plan.
Payload is switched on in Day 14 of LEOP.
LAUNCH
17IOCP High Level Plan, 8 September 2009
SODAPWeek 1 Week 2 Week 3
SODAP comprises the RF Link Test, the ESAC MINI Test and the Svalbard MINI Test, each one 1 week long.
During SODAP the payload is ON.
SODAP comprises the first 3 weeks after LEOP.
First two weeks include also some Platform Commissioning activities.
SODAP is described in Sections 4.2 through 4.5 of the Commissioning Plan.
Key Point 0: decision to start the MIRAS Payload Commissioning / first pointing correction estimation (geolocation estimate) / first L1-L2 collocation / DPGS working up to level L1 (dual) and L2 /
0
18IOCP High Level Plan, 8 September 2009
SODAP ActivitiesWeek 1 Week 2 Week 3
SODAP activities have been defined by the SODAP team.
It is proposed to attempt a first long cal, external calibration to get the Flat Target Response (section 4.6.4) and first image acquisition (section 4.6.6), all in dual-pol, at Week 3, and if failed, at Week 4.
A correlator test will precede those attempts (section 4.6.2).
For the image acquisition dual-pol with LO calibration is needed.
During SODAP L1PP shall concentrate on the identified areas (Madagascar, Mid-Pacific Ocean…).
0
19IOCP High Level Plan, 8 September 2009
Week 1LEOP Week 1 Week 2
Day 14 of LEOP: Payload Switch ON
Plain Full Pol
MON TUE WED THU FRI SAT SUN
20IOCP High Level Plan, 8 September 2009
Week 2Week 1 Week 2 Week 3
Galactic Pole – Inertial 30’
Flip-over
Plain Full Pol
MON TUE WED THU FRI SAT SUN
Zenithal 110’
Inertial 2’
Plain Full Pol
0
21IOCP High Level Plan, 8 September 2009
Week 3Week 2 Week 3 Week 4
Galactic Pole – Inertial
(FTR in Dual Pol and NIR)
Long Calibration
Correlator Test
Plain Full Pol (+ LO Cal )
MON TUE WED THU FRI SAT SUN
Key Point 0
First Image Opportunity
S-band check - ZenithS-band check - Zenith
0
0
22IOCP High Level Plan, 8 September 2009
MIRAS Payload Commissioning
The MIRAS Payload Commissioning phase comprises the characterisation, calibration, validation and verification of the instrument.
This phase comprises the first 5.5 weeks after SODAP, plus 1 week holidays (Week 5X).
This phase is described in Sections 4.6 and 4.7 of the Commissioning Plan.
4
5 6 7
8 9
XMAS
5X
1
23IOCP High Level Plan, 8 September 2009
Week 4Week 3 Week 4 Week 5
Week 4 is the start of the MIRAS Payload Commissioning
Activities:
- Correlator Test, if failed in previous attempt (section 4.6.2)
- Thermal stability: instrument in default mode (section 4.6.1)
- Long Calibration orbit
- External Calibration targeting the Galaxy in inertial pointing, to assess the absolute accuracy of MIRAS.
- First image opportunity, if failed in previous attempt (section 4.6.6)
- Electrical stability (section 4.6.3) including U-noise injection (section 4.6.24)
- In-between activities, the instrument is in Default Mode (see next slide)
- External Calibration to assess impact of SADM
XMAS0
24IOCP High Level Plan, 8 September 2009
Default Mode Definition
Default Mode definition:
- Dual-pol mode
- LO calibration including U-noise (6 epochs):
Week 4 - every 2 minutes (100 epochs)Week 5 and onwards – TBD minutes (based on Week 4 analysis)
- Short cal (29 epochs): every 2.5 hours (7500 epochs) TBC
-Long cal (4996 epochs): every 2 days (144000 epochs)
25IOCP High Level Plan, 8 September 2009
Week 4Week 3 Week 4 Week 5
Thermal Stability
Default
ModeElectrical Stability
Long Calibration
Galaxy – Inertial
(absolute accuracy)
Correlator Test
MON TUE WED THU FRI SAT SUN
First Image Opportunity
SADM
XMAS0
26IOCP High Level Plan, 8 September 2009
Week 5Week 4 Week 5 Week 5X
Activities:
- Electrical stability (section 4.6.3) including U-noise injection (section 4.6.24)
- Long Calibration orbit
- External Calibration to check RFI from X and S-band (section 4.6.13), and STR RFI, in parallel targeting the Moon in inertial pointing (section 4.7.4)
XMAS
27IOCP High Level Plan, 8 September 2009
Week 5Week 4 Week 5 Week 5X
Default Mode
Electrical Stability
Long Calibration
Moon – Inertial
(X, S, STR RFI)
MON TUE WED THU FRI SAT SUN
XMAS
XMAS
28IOCP High Level Plan, 8 September 2009
Week 5XWeek 5 Week 5X Week 6
This week is part of the Xmas holidays.
Activities:
- Instrument in Default Mode
XMAS
29IOCP High Level Plan, 8 September 2009
Week 5X
Default Mode
MON TUE WED THU FRI SAT SUN
XMAS
Week 5 Week 5X Week 6
XMAS
30IOCP High Level Plan, 8 September 2009
Week 6Week 5X Week 6 Week 7
Activities:
- All-LICEF test (section 4.6.22)
- Long Calibration orbit
- External Calibration with Galactic Pole, inertial pointing, Full-pol (section 4.6.7)
- Early Full-pol mode (section 4.6.8)
- Electrical stability check
- NIR 3rd and 4th Stokes parameters verification
XMAS
31IOCP High Level Plan, 8 September 2009
Week 6Week 5 Week 6 Week 7
Default Mode
Long Calibration
Galactic Pole – Inertial
(FTR in Full Pol and NIR)
Full Pol Mode
MON TUE WED THU FRI SAT SUN
All-LICEF
L E
N
NIR Stokes
32IOCP High Level Plan, 8 September 2009
Week 7Week 6 Week 7 Week 8
Activities:
- Early Full-pol mode (section 4.6.8)
- Long Calibration orbit
- External Calibration with Galactic Pole, inertial pointing, Dual vs Full-pol
- Electrical stability check
Note: long calibration and external calibration are performed twice to better assess dual vs full-pol performances.
1
33IOCP High Level Plan, 8 September 2009
Week 7Week 6 Week 7 Week 8
Full Pol Mode
Long Calibration
Galactic Pole – Inertial
(Dual vs Full Pol)
Default Mode
MON TUE WED THU FRI SAT SUN
E
Long Calibration
Galactic Pole – Inertial
(Dual vs Full Pol)
Default Mode
1
34IOCP High Level Plan, 8 September 2009
Week 8Week 7 Week 8 Week 9
Activities:
- Long Calibration orbit
- External Calibration with Galactic Pole, inertial pointing, to check NIR leakage (section 4.6.21)
- Electrical stability check
- Key Point 1 main issues:
a) calibration rate for LO and Short
b) start of pseudo-operational phase (alternating Dual and Full-pol)
c) preliminary assessment of LICEF PMS Cold Sky calibration
d) first geolocation correction matrix
e) first accuracy estimate of L1 and L2 (dual and full)
1
35IOCP High Level Plan, 8 September 2009
Week 8Week 7 Week 8 Week 9
MON TUE WED THU FRI SAT SUN
Default Mode
Long Calibration
Galactic Pole – Inertial
(NIR leakage)
Default Mode
Key Point 1
E
1
1
36IOCP High Level Plan, 8 September 2009
Week 9Week 8 Week 9 Week 10
Activities:
- NIR PMS Calibration (section 4.6.23)
- Long Calibration orbit
- External Calibration with Galactic Pole, inertial pointing, Dual-pol
- Dual-pol mode with nominal rate of LO and Short calibration
- Electrical stability check
1
37IOCP High Level Plan, 8 September 2009
Week 9Week 8 Week 9 Week 10
MON TUE WED THU FRI SAT SUN
Default Mode
Long Calibration
Galactic Pole – Inertial
(FTR in Dual Pol and NIR)
Dual Pol Mode
NIR PMS
N E
1
38IOCP High Level Plan, 8 September 2009
Weeks 10, 14, 18, 22
Activities:
- Dual-pol mode with nominal rate of LO and Short calibration
- Long Calibration orbit
- External Calibration with Galactic Pole, inertial pointing, in Full-pol
- Full-pol mode with nominal rate of LO and Short calibration
39IOCP High Level Plan, 8 September 2009
Weeks 10, 14, 18, 22
Dual Pol Mode
Long Calibration
Galactic Pole – Inertial
(FTR in Full Pol and NIR)
Full Pol Mode
MON TUE WED THU FRI SAT SUN
Week 10
40IOCP High Level Plan, 8 September 2009
Weeks 11, 15, 19
Activities:
- Full-pol mode with nominal rate of LO and Short calibration
- Long Calibration orbit
- External Calibration, NIR 1.1 orbit, zenith pointing
- Dual-pol mode with nominal rate of LO and Short calibration
41IOCP High Level Plan, 8 September 2009
Weeks 11, 15, 19
MON TUE WED THU FRI SAT SUN
Long Calibration
1 Full Orbit Zenith Pointing
(NIR)
Dual Pol ModeFull Pol Mode
Week 11
42IOCP High Level Plan, 8 September 2009
Weeks 12, 20
Activities:
- Dual-pol mode with nominal rate of LO and Short calibration
- Long Calibration orbit
- External Calibration, NIR 1.1 orbit, zenith pointing
- Full-pol mode with nominal rate of LO and Short calibration
43IOCP High Level Plan, 8 September 2009
Weeks 12, 20
MON TUE WED THU FRI SAT SUN
Long Calibration
1 Full Orbit Zenith Pointing
(NIR)
Full Pol ModeDual Pol Mode
Week 12
44IOCP High Level Plan, 8 September 2009
Weeks 13, 17, 21
Activities:
- Full-pol mode with nominal rate of LO and Short calibration
- Long Calibration orbit
- External Calibration with Galactic Pole, inertial pointing, Dual-pol
- Dual-pol mode with nominal rate of LO and Short calibration
45IOCP High Level Plan, 8 September 2009
Weeks 13, 17, 21
MON TUE WED THU FRI SAT SUN
Long Calibration
Galactic Pole - Inertial
(FTR in Dual Pol and NIR)
Dual Pol ModeFull Pol Mode
Week 13
46IOCP High Level Plan, 8 September 2009
Week 16
Activities:
- Key Point 2 (week 16) main issues:
a) confirmation of calibration rate for LO and Short
(compatible with a 6 day full coverage for SM)
b) preliminary assessment of Dual and Full-pol
c) in-depth analysis of Dual and Full at levels L1 and L2 leading to
the evaluation of L1 & L2 data product quality, and release to SVRT
d) decision on LICEF PMS Cold Sky calibration (impacts L1OP)
Week 15 Week 16 Week 17
2
47IOCP High Level Plan, 8 September 2009
Week 16
MON TUE WED THU FRI SAT SUN
Long Calibration
1 Full Orbit Zenith Pointing
(NIR)
Full Pol ModeDual Pol Mode
Key Point 2
Week 15 Week 16 Week 17
2
2
48IOCP High Level Plan, 8 September 2009
Week 23
Activities:
- Full-pol mode with nominal rate of LO and Short calibration
- Long Calibration orbit
- External Calibration targeting the Moon in zenith pointing, Dual-pol
- Electrical stability (section 4.6.3) including U-noise injection (section 4.6.24)
- Key Point 3 main issues:
a) confirmation of calibration rate for Cold Sky and Long Calibration
b) final assessment of Dual and Full-pol
c) preparation for the decision to go into the operational phase
Week 22 Week 23
Operational
Week 24
3
49IOCP High Level Plan, 8 September 2009
Week 23 Week 22 Week 23
Full Pol Mode
Long Calibration
Electrical Stability
Week 24
Moon – Zenith Pointing
MON TUE WED THU FRI SAT SUN
Operational
Key Point 3
3
3
50IOCP High Level Plan, 8 September 2009
Criteria for FTR Acquisition
Necessary Criteria:
1.- Minimum sky brightness temperature (ensures maximum contrast)
2.- Minimum sky rms brightness temperature (ensures maximum uniformity)
3.- Sun behind antenna plane or eclipsed by Earth (minimises Sun contamination)
4.- Antenna beam away from equatorial plane (minimises RFI from other satellites)
Criteria which can be relaxed to some extent if not fulfilled:
5.- Moon behind antenna plane (minimises Moon effects)
Criteria which are recommended but subject to investigation:
6.- FTR acquisition while over ocean (should reduce backlobe contamination)
51IOCP High Level Plan, 8 September 2009
S-band RFI Test Timeline
1 2 3 4 5 6 7 8 9 10 11 time
1.1 orbit (zenith) = 11 x 2 x 5 minutes
5 min2x5 min
OFF
ON
OFF
52IOCP High Level Plan, 8 September 2009
SADM Effects Test Timeline
+5
time
Flat Target Acquisition (inertial pointing) = 740 epochs = 8 x 111 s
5
00 0
ETO time
(External Target Observation):
at ETO time, boresight = zenith
111 s
222 s
222 s
111 s
222 s
SADM angle