README web version of /home/usg/OPS/MTS/readme_xml/readme_83504300
Principal Investigator Email Address
Estimated Total Execution Time (hours, including overheads)
General Description
The overall goal of this proposal is the imaging and spectroscopic characterisation
of Jupiter's impact site from July 19th. In order or priority, the goals of this
program are:
1. Imaging of Jupiter's southern hemisphere and impact scar in 8 filters: 7.9,
PAH1, SIV_2, NeII_2, Q1, Q2, Q3, NeII_1. This will be repeated twice (three times
if there's available time).
2. Spectroscopy at MR 7.5-9.3, 10.3-13.0, HR 8.02 microns and HRX 13.36 microns
for the impact site, with the slit oriented east-west through the feature. This
will be repeated twice only if time is available.
Waiver Requests
Critical Observing Condition Constraints
Time-Critical Aspects
These observation blocks should be conducted as soon as possible to measure
the thermal signature of the impact. Ephemeris and rates have been supplied from
now until mid August.
Please execute the OBs in the following order (Finding charts are included to locate
the targets):
SOUTHERN HEMISPHERE:
1. Mov_img_jup_set1 (8 filters, 60s exposures). Start around 2 hours before central
meridian crossing of the feature.
2. Mov_spect_jup_impact (4 spectra of the impact site close to central meridian
crossing).
3. Cal_spect_star (4 calibration spectra on the star).
4. Mov_img_jup_set2 (a second imaging set with during or after central meridian
crossing).
If time is then remaining:
5. Mov_img_jup_set3 (a third characterisation of the impact site as it sets).
Central Meridian Crossing times for the impact feature:
Output format: Date UT (C.M. of System 3, Altitude of Jupiter)
2009 Jul 26 06:39 ( 300, 78)
2009 Jul 27 02:30 ( 300, 37)
2009 Jul 28 08:16 ( 300, 58)
2009 Jul 29 04:07 ( 300, 61) 23:58 ( 300, 6)
2009 Jul 30 09:53 ( 300, 34)
2009 Jul 31 05:44 ( 300, 80)
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: The second chop position will be discarded, so ensure chop throw is sufficient
to minimize overlap on the planet's southern hemisphere. This can be set at 20 arcsec.
For southern hemisphere imaging, Jupiter should be centered right-left, with the
southern limb some 3-4 pixels above the bottom of the field of view, chopping so
as to avoid overlap of the positive and negative images on the southern hemisphere
(see example in finding charts).
POINTING FOR SPECTROSCOPY: Rotate slit so that it lies east-west across the target
(see finding charts), parallel to the central meridian. The north polar position
angle is 337.78 degrees, we estimate that the telescope rotator angle and chopping
position angle should be set to 292.2 to achieve this (please verify).
Special Calibration Information
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
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