Iapetus rev 49 requests: ISS_049IA_REGCOLTRL001_PRIME

Update: 09 Aug 2007 (TD)

Start UTC: 2007-254T02:20:00

Duration: 00:40 h

Alloc. data volume: 62.8 Mb. ISSPT: 17.6 + 31.1 = 48.7 Mb

TelMode: S&ER-5a

Attitude: ISS_NAC to Iapetus (NEG_X to NEP)

Trigger (2): 2388, 2927

Spatial resolution (NAC) = 607 ... 641 m/pxl

Geometry:

    UTC             ALTITUDE  SC_LAT   SC_LON   Sun_LAT  Sun_LON  PHASE

2007 SEP 11 02:20     101229    -9.8    247.7       1.4    216.7   33.3

2007 SEP 11 02:40     104040    -9.8    247.8       1.4    216.8   33.3

2007 SEP 11 03:00     106852    -9.8    247.9       1.4    216.8   33.3

Goals: - 2nd 'saturnshine' imaging attempt of 'moat' crater
- Regional multi-color observation of equat. transition zone

Pointing (pdt issues):
Saturnshine (lat_lon_230, trigger 2388): 02:21:30 UTC; tracking duration = 04:10 min.
- Tracking lat/lon = +9/325
- 1x1 'moat' crater area with illuminated part of disk just outside FOV

Color (lat_lon_231, trigger 2927): 02:27:05 UTC; tracking duration = 31:58 min.
- Tracking lat/lon = ±0/210
- 1x2 mosaic; dwells = 17:30; 13:52 min
- 1st ftprt: at ~3-o-clock position (equatorial), with limb just visible at the edge of frame
- 2nd ftprt: south of first

Exposures (ISSPT issues):
Saturnshine:
- 3 NAC clear filter shutters, 46s 12 bit, two 1sum, g=3, one 2sum g=2

Color:
- 1st ftprt (equat.): N24 + NP09 + WP04
- 2nd ftprt (south. lats): N16 + NP09 (ends with Ir2/Ir3 = final pic.)
- All LUT lossy
- Enforce data policy violation

Exposure times:
- see separate list (C/A > +03:00 hrs)

- Radial smear table:
            exp.     full res. 2sum
            32s → 0.76 pxl           0.38 pxl
            38s → 0.90 pxl           0.45 pxl
            46s → 1.09 pxl           0.55 pxl