UVIS Ops Team
UVIS TEAM MEETING 6/23/08
1
Instrument Status
• On/Off Cycle: 27
– No change since last meeting
• Hours On: ~69,000 hours
– Continuous operations since 9/11/2007
– Longest continuous operations was from
1/15/2005 (probe relay) to 9/11/2007 (S/C safing)
• HDAC Filament Modulation:
– Filament 1: 100.28 hours
– Filament 2: 12.22 hours
– Last: 2006/255
UVIS TEAM MEETING 6/23/08
2
Significant Issues
• S36: UVIS_055SA_NAURMOV001_PRIME
– Partial lost - Rain in Spain
• S37:UVIS_058ST_URBETLUP001_PRIME
– Miss the star (wrong RA/DEC in CIMS, no double checking)
• S38: UVIS_059ST_ETACMA002_PRIME
– Incorrect dead band during RCS to RWA transition (?).Star
in/out the FUV slit. ISA Z92247
• S39: None
• S40: Lot of partial or total data looses due to DSN
– Some riders and UVIS_067IC_ALPVIR001_PRIME (total),
UVIS_065ST_URALPARA001_PRIME (partial),
UVIS_069SA_NAURMOV002_PRIME (partial)
• S41: None to this day
UVIS TEAM MEETING 6/23/08
3
Planning/Sequencing Issues
• RBOT analysis
– New process for the XM
• More wheel biases, less science impact, less
workforce impact
• Needs to be concluded at SOP port 3
– No late pointing changes
– S42 was very clean, S43 somewhat less
UVIS TEAM MEETING 6/23/08
4
Planning/Scheduling Issues
• “Just-in-time” process
– Significant problems with the quality of what is
delivered by SP for implementation by the ops
teams
– Random secondary axis (cut & paste?)
• If possible use the WP secondary
• Significant time lost and frustration over this issue
– Custom period not defined in CIMS
– Bogus information in CIMS (cut & paste?)
– Take the time to review your CIMS requests
UVIS TEAM MEETING 6/23/08
5
AI from last meeting
• Atmospheric Occultation during Ring
Occultation
– We are switching to the AO set up from
inside the D-ring to Saturn limb whenever
possible.
– List of the requests will be put on the team
web site (updated after data is collected).
• Provided in next slide
UVIS TEAM MEETING 6/23/08
6
REV #
SEQ #
REQUEST
ATM OCC TIME
NOTES
30
S24
UVIS_030ST_URALPVIR001_PRIME
2006_285_08_20_01
Data drops. No offset
35
S25
UVIS_033ST_URALPARA001_PRIME
2006_325_23_19_11
No offset
62
S39
UVIS_062RI_SOLAROCC001_VIMS
2008_083_10_09_11
Sun "grazing" Saturn
limb
63
S39
UVIS_063ST_URALPARA001_PRIME
2008_092_09_19_58
No offset
64
S39
UVIS_064ST_URGAMCAS001_PRIME
2008_102_13_33_58
No offset
65
S40
UVIS_065ST_UREPSCEN001_PRIME
2008_110_14_20_58
4.5 mrd offset
65
S40
UVIS_065ST_URALPARA001_PRIME
N/A
Data lost (DSN
problem)
UVIS TEAM MEETING 6/23/08
7
AI from last meeting
• HSP at 500µ sec
– Nothing done yet.
UVIS TEAM MEETING 6/23/08
8