Iapetus rev 49 requests: ISS_049SA_SATSYSFIA001_PRIME

Update: 09 Aug 2007 (TD)

Start UTC: 2007-252T02:10:00

Duration: 02:15 h

Alloc. data volume: 360 Mb. ISSPT: 366.5 Mb

TelMode: S&ER-5a

Attitude: ISS_NAC to Saturn (NEG_Z to NSP)
Trigger (8): 2374, 2415-2419, 2433-2434

Spatial resolution (Saturn and rings in the WAC) = 196 km/pxl

Geometry:

    UTC             ALTITUDE  SC_LAT   SC_LON   Sun_LAT  Sun_LON  PHASE      Mb pred.

2007 SEP 09 02:20    2183044   -11.8    193.8      -9.6    199.4    8.8   HY    10.0

2007 SEP 09 02:20    4516585    -3.0    343.4     -10.5     10.2   27.7   TI    24.4

2007 SEP 09 02:30    3096399    -5.1    222.2     -11.6    251.7   29.5   TE     9.9

2007 SEP 09 02:30    3151546    -3.5    157.0      -8.3    187.9   34.1   MI    12.5

2007 SEP 09 02:30    2799722    -4.6    177.5     -10.3    210.4   33.5   RH    11.4

2007 SEP 09 02:40    3155500    -4.2    135.4     -10.1    170.1   35.7   EN     9.9

2007 SEP 09 02:40    3520482    -3.9     55.6     -10.7     93.7   38.1   DI     9.9

2007 SEP 09 02:40    3264181    -3.4    278.5      -8.8    311.0   32.8   SA   278.4

2007 SEP 09 03:30    3267915    -3.4    306.6      -8.8    339.1   32.9   SA

2007 SEP 09 04:20    3271624    -3.4    334.7      -8.8      7.3   33.0   SA

2007 SEP 09 04:50     281158     9.8     59.8       1.4    208.1  146.2   IA

Goals: - Coverage of whole Saturn system from approx. distance and epoch of Iapetus targeted flyby (for PR purposes)

Pointing (pdt issues):
1. Satellites:
- Tracking duration per moon: 65 sec; Hy 70s; Titan 3 min.
- Targeting order: Hy (2374), Ti (2415), Te (2416), Mi (2417), Rh (2418), En (2419), Di (2433)
2. Saturn (trigger 2434), WAC mosaic:
- WAC 1x5 shaped panel centered at Saturn (outer ftprts for moons locations)
- Dwell >65s/ftprt
3. Rings NAC mosaic:
- Follow ring from lower left to shadow (at lower right)
- => 1x5 + 1 + 1x5 per ansa, and ~1x8 along Saturn disk
- Dwell >66s/ftprt
4. Saturn VIMS mosaic:
- 2x2 mosaic; about 10mrad shifts between panels
- Dwell >7:02 min/ftprt

Exposures (ISSPT issues):
Satellites:
- NAC Red, Grn, Bl1; Titan Uv3, Cb3 in addition; all 12 bit; 23 images total
- Exp. times (Red, Grn, Bl1):
   Mi: 180ms / 260ms / 1.0s         En: 150ms / 180ms / 680ms      Te: 150ms / 180ms / 820 ms
   Di: 180ms / 220ms / 1.0s          Rh: 180ms / 220ms / 820ms     Hy: 380ms / 560ms / 2.0s
   Titan: 320ms / 460ms / 3.2s / 18s (g=3, Uv3) / 18s (g=3, Cb3)
Saturn, WAC:
- WAC Red, Grn, Bl1; 15 images total
- Center frames: 12 bit; edge frames: LUT
- Exp. times WAC: 15ms (Red), 25ms (Grn), 150ms (Bl1)
Rings NAC mosaic:
- NAC Red, Grn, Bl1; ~81 images LUT
- Exp. times NAC: 220ms (Red), 380ms (Grn), 1.8s (Bl1)
Saturn, VIMS:
- WAC clr, lossy comp., 10ms