README web version of /home/usg/OPS/MTS/readme_xml/readme_82062600

Principal Investigator Email Address

• N.Christlieb@lsw.uni-heidelberg.de

Estimated Total Execution Time (hours, including overheads)

• 10:21:42

General Description

• The goal of our CRIRES observing program is to obtain high-quality (R
   ~ 50000, S/N ~ 200) K-band spectra of our targets in order to derive F abundances
   from the R9 HF feature at 2.3358 microns.  The instrumental set-up we have described
   in the attached OBs will place this feature on the second ccd, where according to
   the CRIRES ETC signal is maximized.  We request that a telluric standard be observed
   after each science object OB, and OBs for suggested telluric standards have been
   included.  There are three stars (HE 0253-6024, HE 0520-5012, G 77-61) for which
   the total execution time required to achieve S/N ~ 200 is greater than 1 hour, so
   two OBs have been generated for these stars.  Similarly, two OBs for the associated
   telluric standards have also been generated.

Waiver Requests

• Three Waiver Requests (WaiverID: 082.D-0626A.01) have been approved for
   our program.  The initial Waiver Request was submitted on 23 July 2008, which was
   acknowledged on the same day.  Two of the requests- to use AO and to use a free
   wavelength setting (lambda_ref = 2350 nm and order = 24)- were approved on 24 July
   2008.  The third request- to include an additional target in our target list, the
   extra time gained from using AO in our observations- was re-requested through the
   programme change request web form on 24 July 2008.  Approval of our target addtion
   request was granted on 27 July 2008.

Critical Observing Condition Constraints

• N/A

Time-Critical Aspects

• N/A

Special Execution Requirements

• Because the requested S/N is critical to obtaining accurate measurements
   of the HF and other features, please complete each OB (or pair of OBs where needed)
   for each target before moving on to another target.

Special Calibration Information

• We require no special calibrations beyond the daily CRIRES calibration
   plan (taken with our requested instrumental set-up) and telluric standards obtained
   after each object OB.

ToO Information

• N/A

ToO Activators List

• N/A

Do the README file and the instrument comments of the telluric stars
 OBs include the required S/N/pixel of the spectrum of the telluric star, its spectral
 type and allowed spectral range?

• YES

Do any OBs include wavelength or flatfield calibrations?

• NO

If you are observing Moving Targets, have you attached suitable ephemeris
 files to your OBs?

• N/A

If the slit viewer guide star is different from the target, are the RA
 and DEC offsets accurate to within 0.05 arcsec and do they take into account the
 relative proper motion between the two objects?

• N/A

If you have preferences which OBs should be executed first for objects
 at similar RA, did you make use of the User Priority field in the OBs?

• N/A