02/14/00
Cruise Activity Request (CAR) Form
Revised for UVIS 02/14/00
Observation Name: URMULTISTAR
Submitted By: Joshua Colwell
Measurement Objective: Intensity and transmitted spectra of more than one star during
consecutive occultations of stars by rings.
Scientific Objective: High resolution radial profiles of ring optical depth at multiple azimuths
in less than one orbit period show two dimensional structure of density and bending waves
excited in rings by gravitational perturbations.
Activity Description: Point UVIS HSP to first star prior to occultation start. Orient slit tangent
to rings if possible. Stare at star (track [RA, DEC] on SKY). Record HSP data and FUV
spectra. Slew to next star and sequence without interruption in data taking. Repeat for all stars
in observation.
Activity Start Time : (at least provide an activity window)
See attached list.
Activity Duration: (per iteration)
Variable. See attached list.
Number Of Iterations:
See attached list.
Interval Between Iterations:
Variable. See attached list.
Target : (for example: Titan)
SKY (various stars). See attached list.
Pointing: (feature or position on target, slit orientation, module used…)
HSP to star. Slit orientation tangent to rings. ORSOCC module (fixed inertial pointing).
Estimated Data Volume: (in Mbits) Variable. See attached list for durations.
Instrument Set Up: (use ODC’s from ODH or suggest alternative setup)
Notes: (any special characteristics, or requirements that go beyond the above information)
Data collection is continuous. In the event of a conflict, a partial observation is still useful and
desired.
02/14/00
ObserStart Time
vation
Set
1: Star 1 2006 Nov 09
08:50
1: Star 2 2006 Nov 09
10:40
2: Star 1 2008 Feb 08
01:00
2: Star 2 2008 Feb 08
06:30
2: Star 3 2008 Feb 08
13:50
End Time Duration Star Name
(sec)
2006 Nov 09 5400
10:20
2006 Nov 09 30000
19:00
2008 Feb 08 18000
06:00
2008 Feb 08 8400
13:30
2008 Feb 08 7800
14:50
Right
Ascension
Declination
Nu Cen
207.376
-41.6878
Data
Volume
(Mbits)
2.43E+01
Alp Lup
220.483
-47.3884
1.35E+02
Alp Lup
220.483
-47.3884
8.10E+01
Alp Ara
262.96
-49.876
3.78E+01
Lam Sco
263.402
-37.104
3.51E+01