CIVA status and on comet science

1
CIVA status and on comet science
3rd post-launch Philae Science Team, Budapest,
18/12/2007
2
CIVA status and on comet science
3rd post-launch Philae Science Team, Budapest,
18/12/2007
3
Civa status

• Overall good health
• For what could be tested (all but the IR
  detectors), all systems work nominally the 7
  CIVA-P cameras, CIVA-M/V in three colours.

4
Civa status

• Overall good health
• For what could be tested (all but the IR
  detectors), all systems work nominally the 7
  CIVA-P cameras, CIVA-M/V in three colours.
• Demonstrated by MSB CIVA-P images

5
CIVA P1 image during MSB
6
CIVA-P CAM 1 015321 LOBT
7
(No Transcript)
8
Cratères
with a pretty good image quality resolution,
focus
9
Cratères
with a pretty good image quality resolution,
focus
10
Civa status

• Overall good health
• For what could be tested (all but the IR
  detectors), all systems work nominally the 7
  CIVA-P cameras, CIVA-M/V in three colours.
• Demonstrated by MSB CIVA-P images
• Demonstrated by imaging ovens

11
empty oven ( 7)
12
empty oven ( 9)
13
calibration oven
14
empty oven ( 7)
15
empty oven ( 7)
empty oven ( 7)
10 µm spot
16
empty oven ( 7)
empty oven ( 7)
10 µm spot
17
empty oven ( 7)
empty oven ( 7)
10 µm spot
18
Civa status

• Overall good health
• For what could be tested (all but the IR
  detectors), all systems work nominally the 7
  CIVA-P cameras, CIVA-M/V in three colours.
• Demonstrated by MSB CIVA-P images
• Demonstrated by imaging ovens
• 1st ESB MSB provide an accurate photometric
  calibration

19
Civa status

• Overall good health
• For what could be tested (all but the IR
  detectors), all systems work nominally the 7
  CIVA-P cameras, CIVA-M/V in three colours.
• Demonstrated by MSB CIVA-P images
• Demonstrated by imaging ovens
• 1st ESB MSB provide an accurate photometric
  calibration
• ? see concern 1, though

20
Civa status

• Overall good health
• For what could be tested (all but the IR
  detectors), all systems work nominally the 7
  CIVA-P cameras, CIVA-M/V in three colours.
• Demonstrated by MSB CIVA-P images
• Demonstrated by imaging ovens
• 1st ESB MSB provide an accurate photometric
  calibration
• SONC processing is perfect

21
CIVA status and on comet science
3rd post-launch Philae Science Team, Budapest,
18/12/2007
22
Civa on comet operations

• CIVA concerns for on comet operations

23
Civa on comet operations

• CIVA concerns for on comet operations
• Concern 1 lower (than 32 ms) integration times
  required to avoid saturation of ultrabright spots
  ? S/W upload

24
Civa on comet operations

• CIVA concerns for on comet operations
• Concern 1 lower (than 32 ms) integration times
  required to avoid saturation of ultrabright spots
  ? S/W upload
• The upload failures (PC6) likely due to a CDMS
  related problem, corrected in the new S/W version
  (TBC) ? PC8

25
Civa on comet operations

• CIVA concerns for on comet operations
• Concern 1 lower (than 32 ms) integration times
  required to avoid saturation of ultrabright spots
  ? S/W upload in PC8
• Concern 2 data storage/uplink

26
Civa on comet operations

• CIVA concerns for on comet operations
• Concern 1 lower (than 32 ms) integration times
  required to avoid saturation of ultrabright spots
  ? S/W upload in PC8
• Concern 2 data storage/uplink ? use of CDMS
  MM

27
Civa on comet operations

• CIVA concerns for on comet operations
• Concern 1 lower (than 32 ms) integration times
  required to avoid saturation of ultrabright spots
  ? S/W upload in PC8
• Concern 2 data storage/uplink ? use of CDMS
  MM
• ? no erase prior to validation

28
Civa on comet operations

• Primary science (first sequence)
• Full 360 stereoscopic panorama
• Microscopic analysis (VIS NIR) of each sample

29
Civa on comet operations

• Primary science (first sequence)
• Full 360 stereoscopic panorama
• Microscopic analysis (VIS NIR) of each sample
• Long term science
• Few additional stereoscopic panorama to monitor
  activity
• Microscopic analysis (VIS NIR) of each new
  sample

30
Civa on comet operations

• Issue 1. energy
• Not a severe issue
• Issue 2. thermal
• Not a severe issue
• Issue 3. data volume
• The most severe issue

31
Civa on comet operations

• Conclusion
• If landed tomorrow, CIVA would be ready to
  operate at full performances, with reduced
  contrast for bright surface spots.