README web version of /home/usg/OPS/MTS/readme_xml/readme_83016400

Principal Investigator Email Address

• fletcher@jpl.nasa.gov

Estimated Total Execution Time (hours, including overheads)

• 5.5 hours

General Description

• Observation goal:
  
  (1) To image Saturn in 8 filters: PAH1, SIV_2, NeII_1, NeII_2, 7.9, Q1, Q2, Q3.
    Repeat to capture feature rotation on Saturn's disk.  Saturn aligned so both planet
   and ring ansae sit on the array.  
  (2) Spectroscopy along the central meridian (A) HR 8.02 micron, (B) HR 12.81 micron
   and (C) MR10.3-13.0 microns.

Waiver Requests

• No Waiver Request was submitted

Critical Observing Condition Constraints

• Seeing under 0.8", and airmass less than 2.0.

Time-Critical Aspects

• This first observation run should be conducted in April 2009 to allow
   time for repeated imaging sequences in May or June (also this proposal). 
  
  IMAGING:  The first eight-filter imaging set (MOV_img_saturn_apr09_set1) should
   be conducted as early as possible during the night to allow for the second imaging
   set (MOV_img_saturn_apr09_set2) to be conducted 5 hours later (or at multiples of
   10 thereafter) to capture Saturn's opposite hemisphere.
  
  SPECTROSCOPY:  Spectroscopic observations along Saturn's central meridian can be
   performed independently of one another at any time that Saturn is available (preferably
   at low airmass).  There is no explicit order to the spectroscopic OBs, but observations
   of the target and of the spectral calibrator (also provided) must be taken sequentially.

Special Execution Requirements

• SEQUENCE TIME:
  The total sequence time for imaging on each filter is 120 seconds. The Generic ChopNod
   template was used to ensure offsets were in place to avoid bad pixels.
  
  Each spectroscopic integration should last 900s on both Saturn and the calibration
   star.
  
  POINTING:
  Pointing for Imaging: Planet disk should be centred, and rotated by approximately
   50 degrees so that east and west ring ansae fit diagonally across the array from
   bottom left to top right (50" width) as shown in finding charts.  Chopping Position
   angle has been set to 50 degrees (measured east from north) and rotator angle has
   been set to 50, but the exact value will depend on the observational date.  PLEASE
   CONFIRM THAT THESE ANGLES ARE CORRECT FOR ORIENTATION AS IN THE FINDING CHARTS.
  
  Pointing for Spectroscopy: Planet disk should be centred and rotated anticlockwise
   by 5.1 degrees to align central meridian with slit (see attached finding charts).
    Position angle is 354.9 in early april (rotator and chopping position angle is
   5.1).
  
  Second chop position will be discarded (using subtraction of the nod position 60"
   on the sky to correct for the sky background), so ensure chop throw is sufficient
   to prevent overlap on the planet and rings.

Special Calibration Information

• For spectroscopy, we have supplied three separate observation blocks for
   a standard star in all filters.
  HD98118  [pos 10:07:54.27  09:59:51.0]  V=4.381,[12]=17.570Jy
  Spectroscopic calibration via observations of 75 Leo, an M0III star.
  
  For imaging, we request standard VISIR calibration imaging of a nearby star (at
   the same airmass as Saturn) to characterise the PSF.

ToO Information

• ---(Empty)---

ToO Activators List

• ---(Empty)---

Is this a Pre-imaging run ?

• false

Pre-imaging Requirements

• ---(Empty)---

Source(s) of Pre-imaging

• ---(Empty)---

Pre-imaging sources not listed above

• ---(Empty)---

Do all your OBs comply with the instrument-specific requirements listed
 on the instrument-specific Phase 2 web page ?

• YES

If this is a pre-imaging run, did you select PRE-IMAGING for the Observing
 Category for each Observing Template ?

• N/A

Do all your finding charts comply with both the general and instrument-specific
 Phase 2 Web Pages ?

• YES

If you submitted OBs for standard stars, did you specify the magnitude
 and spectral type of all standard stars in the OBs ?

• YES

Have you included OBs for any calibrations that you need but which are
 not part of the Calibration Plan ?

• YES

If you are observing Moving Targets, have you attached suitable ephemeris
 files to your OBs?

• YES

If you have preferences which OBs should be executed first, did you make
 use of the User Priority field in the OBs ?

• YES

If this is a run that requires coordinated observations with other facilities,
 did you give proper instructions in the Time-Critical Aspects Section ?

• N/A

If the provided finding chart is at a different wavelength than the observations,
 did you clearly describe in the README file how to identify the target?

• N/A

Did you specify a guide star brighter than V=12mag within a field of
 r=5arcmin around the science target?

• N/A