README web version of /home/usg/OPS/MTS/readme_xml/readme_84019300
Principal Investigator Email Address
Estimated Total Execution Time (hours, including overheads)
General Description
Run A will be triggered as soon as possible after February 15th 2010 when
Saturn is available, to observe Saturn close to ring-plane crossing (August 2009).
In order or priority, the goals of this program are:
1. Imaging of Saturn 8 filters: 7.9, PAH1, SIV_2, NeII_2, Q1, Q2, Q3, NeII_1.
Two OBs are provided, to be executed 5 hours apart (or multiples of 10 thereafter)
to capture the opposite side of the planet.
2. Spectroscopy at MR10.1, MR10.3, MR12.3, HR8.02, HR 17.03 microns and HRX13.364,
with the slit north-south along the central meridian. Short slit spectroscopy for
the south polar region only, longslit spectroscopy for the whole planet.
Waiver Requests
Critical Observing Condition Constraints
Time-Critical Aspects
Ephemeris and rates have been supplied from January 1st through to April
1st.
Please execute the OBs in the following order (Finding charts are included to locate
the targets):
Mov_img_saturn_hemis1 = First imaging set.
Mov_spect_sat_MR = Slit along central meridian.
Cal_spect_star_MR = Calibration of spectra
Mov_spect_sat_HR = Slit along central meridian.
Cal_spect_star_HR = Calibration of spectra
Mov_spect_saturn_spole_HRX = Slit along central meridian, centred on south pole.
Cal_spect_star_HRX = Calibration of spectra
Mov_img_saturn_hemis2 = Last imaging set, approximately five hours after the first.
Special Execution Requirements
Generic chop nod is used with two dither positions to remove bad pixels,
but please try to avoid these if possible.
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 48.7 degrees (measured east from north) and rotator angle
has been set to 48.7, 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 3.8 degrees to align central meridian with slit (see attached finding charts).
Position angle is 356.2 in mid-February (rotator and chopping position angle is
3.8). 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. For longslit spectroscopy, the entire
disc should be captured in the slit. Short slit HRX spectroscopy will be focussed
on the south polar region only, with the southern edge of the slit just touching
the south pole.
Special Calibration Information
For spectroscopy, we have supplied three separate observation blocks for
a standard star in all filters.
Nearest 1: HD107328 [pos 12:20:20.98 03:18:45.3] d= 2.5836 degrees. (COHEN)
V=5.00,[12]=5.990Jy guidestar: U0900_07127005 9.7 mag
For imaging, we request standard VISIR calibration imaging of a nearby star (at
the same airmass as Saturn) to characterise the PSF.
ToO Information
ToO Activators List
Is this a Pre-imaging run ?
Pre-imaging Requirements
Source(s) of Pre-imaging
Pre-imaging sources not listed above
Do all your OBs comply with the instrument-specific requirements listed
on the instrument-specific Phase 2 web page ?
If this is a pre-imaging run, did you select PRE-IMAGING for the Observing
Category for each Observing Template ?
Do all your finding charts comply with both the general and instrument-specific
Phase 2 Web Pages ?
If you submitted OBs for standard stars, did you specify the magnitude
and spectral type of all standard stars in the OBs ?
Have you included OBs for any calibrations that you need but which are
not part of the Calibration Plan ?
If you are observing Moving Targets, have you attached suitable ephemeris
files to your OBs?
If you have preferences which OBs should be executed first, did you make
use of the User Priority field in the OBs ?
If this is a run that requires coordinated observations with other facilities,
did you give proper instructions in the Time-Critical Aspects Section ?
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?
Did you specify a guide star brighter than V=12mag within a field of
r=5arcmin around the science target?
Last creation of page: Tue Oct 6 15:40:31 2009
If you have comments, please contact usd-help@eso.org