README web version of /home/usg/OPS/MTS/readme_xml/readme_81505101
Principal Investigator Email Address
Estimated Total Execution Time (hours, including overheads)
General Description
This DDT program aims at NGS AO supported SINFONI observations of young
stellar objects in M17
and their circumstellar environments, using the H+K grating and the 100 mas spaxel
size.
The OBs are structured as described in the following.
For targets Pillar (3x) and MIRSW the OB uses 3 and 4 GenericOffset templates, respectively.
The first and third templates perform offset sequences solely on the science target.
The second and fourth templates perform offset sequences on separate sky positions,
with a
final offset back to the science target (for position verification purposes).
All four templates apply well-defined generic offsets on the basis of a 3x3 positions
grid
with grid spacings of about 2 arcsec.
For targets Triple and B273 the OB uses a sequence of 5 GenericOffset templates
to observe
3-4 adjacent science targets, interleaved by 1 sky position.
On the science targets the templates apply well-defined generic offsets on the basis
of a
2x2 positions grid with grid spacings of about 0.5-1 arcsec.
On the sky positions the templates apply well-defined generic offsets on the basis
of either
a 2x2 or 3x3 positions grid with grid spacings of about 1-2 arcsec.
For each OB a suitable AO NGS has been selected and is indicated in the finding
chart.
IMPORTANT: Please note that some of the observed central point sources are moderately
bright
(at most, up to H = 10.5 mag and K = 8.9 mag).
Therefore, in the corresponding science templates the DIT settings are kept moderately
short
(DIT = 60 sec or 30 sec), on the one hand to avoid detector saturation by the central
point
source, and on the other hand to achieve a suitable compromise in sensitivity for
the spectra
of the central point source and for those of the circumstellar environment.
Nevertheless, we kindly ask the nighttime astonomer to carefully evaluate on the
SINFONI RTD
the acquisition images (DIT = 10 sec) for any detector remanences, before proceeding
with the
science templates. Thanks a lot for all your help and support!
Waiver Requests
Critical Observing Condition Constraints
Time-Critical Aspects
Special Execution Requirements
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 ?
Did you indicate the magnitude of the brightest object in the field in
each SINFONI OB?
If you are using the AO: Did you indicate for every OB the magnitude
of the guide star, and its distance to the target (if any)?
If you submitted OBs for standard stars, did you use the provided StandardStar
templates?
If you are using a specific offset pattern or position angle: did you
check carefully the definition in the manual?
Did you make really sure that none of your OBs ever saturates the detector?
If you are using the AO: did you enter the correct Strehl Ratio (on-axis,
K-band) AND the seeing value in the constraint set?
Last creation of page: Tue Oct 6 15:40:26 2009
If you have comments, please contact usd-help@eso.org