Iapetus rev 49 requests: ISS_049IA_ORSHIRES001_VIMS

Latlon_603 (203) – Trigger 2903 – Closest Approach Imaging

Update: 09 Aug 2007 (TD)

Secondary axis: NEG_X to Iapetus SC_RAM

Spatial resolution (NAC) = 11 ... 9.7 ... 12 m/pxl

GMB_E049_Iapetus = 2007-253T14:15:40

Offset from first tracking period (for trigger start): 0:36:54 h

Geometry:

    UTC             ALTITUDE  SC_LAT   SC_LON   Sun_LAT  Sun_LON  PHASE 

2007 SEP 10 14:08:00    1850     1.1    131.1       1.4    214.4   83.0

2007 SEP 10 14:10:38    1719    -0.4    138.9       1.4    214.4   75.3

2007 SEP 10 14:13:03    1643    -1.8    146.6       1.4    214.4   67.6

2007 SEP 10 14:15:23    1615    -3.2    154.5       1.4    214.4   59.9

2007 SEP 10 14:15:40    1615    -3.4    155.4       1.4    214.4   58.9    C/A

2007 SEP 10 14:17:43    1633    -4.6    162.4       1.4    214.4   52.2

2007 SEP 10 14:20:09    1699    -5.9    170.4       1.4    214.4   44.5

2007 SEP 10 14:22:50    1824    -7.1    178.6       1.4    214.4   36.8

2007 SEP 10 14:25:58    2028    -8.2    187.2       1.4    214.5   29.1

Goals: - Ultra-high-res. imaging of ridge and dark terrain
- Multiple phase angles imaging

Pointing (pdt issues):
- Tracking start UTC: 2007-253T14:07:47 (IA-00:07:53 h)
- Tracking duration = dwell: 18:13 min.
- Tracking end UTC: 2007-253T14:26:00 (IA+00:10:20 h)
- Tracking location: 0/165
- 1x1 "mosaic"; use slight drift of tracking location for extended coverage

Exposures (ISSPT issues):
- ISSPT data volume: 139.3 Mb (all 12 bit)
- 8 BOTSIMs for clr 1x8 "mosaic"
- Timing: For phase angle spacing of 7.7°; shutter times see table above
- Keep exposures short for calc. dark material max DN~250...300 (save data volume)
- No color
- ISSPT frame times (cumulative view):
        FT1 00:00
        FT2 02:46
        FT3 05:11
        FT4 07:31
        FT5 09:51
        FT6 12:17
        FT7 14:58
        FT8 18:06