README web version of /home/usg/OPS/MTS/readme_xml/readme_76501300
Principal Investigator Email Address
Estimated Total Execution Time (hours, including overheads)
General Description
The program aims to obtain a high SNR spectrum of AB Dor C, a low mass
brown dwarf companion to AB Dor A. The companion is located 204 mas from the primary,
at PA 182. We will also test the Super SDI technique in the data reduction to provide
a high SNR spectrum of the companion.
The contrast between the primary and secondary is 5 magnitudes. The program consists
of two OBs for AB Dor at two different roll angles. There is a priority associated
with the OBs, with the priority 1 OB to be executed before the other.
We do need the good seeing and high Strehl, as the companion is so close to the
primary. The fixed jitter pattern is also very important.
A third OB provides a template spectrum of an young M8 star to compare with AB Dor
C. This object is very faint in V (V~22), but has K=15. It is visible in the 2MASS
images. Please see the finding chart for more details.
Waiver Requests
Critical Observing Condition Constraints
Time-Critical Aspects
Special Execution Requirements
It is important to center the object (AB Dor A) correctly in the 0.025
pixel scale. It should be visible even with the minimum DIT (DIT has been set to
the minimum to prevent saturation). If the DIT can be any lower (manual not too
clear about this, neither P2PP), it should be lowered.
Given the small FoV in the 0.025 pixel, the OBs do rely on correct centering of
the object at the end of the acquisition sequence. It should be placed at the center
of the FoV as best possible.
Special Calibration Information
ToO Information
Although this program is not a ToO, the data will be treated as such,
and placed at an ftp site immediately after the observations are taken, with an
e-mail notification being sent to the P.I. This should also be the case for partial
execution of the program.
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 15:40:11 2009
If you have comments, please contact usd-help@eso.org