README web version of /home/usg/OPS/MTS/readme_xml/readme_76021200
Principal Investigator Email Address
Estimated Total Execution Time (hours, including overheads)
General Description
SINFONI IFU observations of two z=0.5 SDSS quasars(SDSS_1231 & SDSS_1248),
using the J-band grating (R=2000), the 250mas pixel-scale and natural
guide-star AO correction.
The primary science goal of the observations is to detect the CaII triplet
absoprtion features in the quasar host galaxies to determine the
stellar velocity dispersions.
Each OB performs 4 AB cycles, with NDIT=1 and DIT=300s at each pointing,
requiring an execution time of 56m32s. There are five of these OBs for each of the
two
targets. Target SDSS_1248 has an additional OB containing 3 AB cycles to make use
of
our full 10 hour allocation.
For both targets the brightest object in the field of view will be the AO
guide star, with AB z-band magnitudes of 14.6 and 14.2 for SDSS_1231 and
SDSS_1248 respectively. The AO guidestar - target separation is ~20" for
both targets, which will not provide optimal AO correction. However, only
a moderate improvement on the natural seeing is require to complete the
science goals of the project.
OB names R(NGS) target separation
-----------------------------------------------
SDSS_1231 14.4 J~18 20.55"
SDSS_1248 14.2 J~17 20.64"
The AO guide star for SDSS_1231 has a faint companion at a separation of 2.8"
from the guide-star. Given the 3.6" FOV of the AO WFS and the brightness
contrast between the AO guidestar and it's companion we are fairly confident that
this should not affect the AO correction for SDSS_1231. However, if this is
not the case we are able to provide an alternate target with the same RA
and redshift as SDSS_1231
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 15:40:09 2009
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