README web version of /home/usg/OPS/MTS/readme_xml/readme_83501600

Principal Investigator Email Address

• Avi.Mandell@nasa.gov

Estimated Total Execution Time (hours, including overheads)

• 1.4

General Description

• The science target is AS205; the target will be observed using a single
   grating setting (reference frequency of 3036 nm).  In addition, OBs for a calibration
   star (BS6378, A2IV) is included as well. S/N of at least 500 per pixel at beam peak
   is required for AS205, and S/N > 800.  The calibration star should be observed
   as close in time to the associated science target as possible, preferrably without
   moving the grating position, in order to minimize sampling and fringing problems.
  
  Note:  Both stars are binaries (including the calibration star).  For each target,
   please center the slit on the brightest component of the binary pair.  We have chosen
   ELEV for the derotator mode for the calibration star due to problems with guiding
   at the high airmass; please be careful to center on the brightest component of the
   binary only because we will not be including both components in the slit.
  
  
  VERY IMPORTANT: DURING NORMAL DAYTIME CALIBRATION OBSERVATIONS, PLEASE TAKE HIGH
   S/N FLATS!!  We don't want to be limited by the flat field noise, so we would like
   to reach S/N of 2000 on the flats for each setting.  This would require ~120 flat
   exposures at ~4000 count level.  If this is not possible, please take at least 60
   exposures, at a minimum, for each setting.

Waiver Requests

• Our Waiver Request asking permission to use a free wavelength setting
   was approved; notification was from Michael Hilker, ESO User Support Department.

Critical Observing Condition Constraints

• Note:  Both stars are binaries (including the calibration star).  For
   each target, please center the slit on the brightest component of the binary pair.
    We have chosen ELEV for the derotator mode for the calibration star due to problems
   with guiding at the high airmass; please be careful to center on the brightest component
   of the binary only because we will not be including both components in the slit.
  
  Please wait to observe the targets until the forecast suggests favorable conditions
   for the required length of time.

Time-Critical Aspects

• Observations can be made any time during the rest of the semester.

Special Execution Requirements

• The calibration star should be observed as close in time to the associated
   science target as possible, preferrably without moving the grating position, in
   order to minimize sampling and fringing problems.
  
  Note:  Both stars are binaries (including the calibration star).  For each target,
   please center the slit on the brightest component of the binary pair.  We have chosen
   ELEV for the derotator mode for the calibration star due to problems with guiding
   at the high airmass; please be careful to center on the brightest component of the
   binary only because we will not be including both components in the slit.
  
  
  VERY IMPORTANT: DURING NORMAL DAYTIME CALIBRATION OBSERVATIONS, PLEASE TAKE HIGH
   S/N FLATS!!  We don't want to be limited by the flat field noise, so we would like
   to reach S/N of 2000 on the flats for each setting.  This would require ~120 flat
   exposures at ~4000 count level.  If this is not possible, please take at least 60
   exposures, at a minimum, for each setting.

Special Calibration Information

• VERY IMPORTANT: DURING NORMAL DAYTIME CALIBRATION OBSERVATIONS, PLEASE
   TAKE HIGH S/N FLATS!!  We don't want to be limited by the flat field noise, so we
   would like to reach S/N of 2000 on the flats for each setting.  This would require
   ~120 flat exposures at ~4000 count level.  If this is not possible, please take
   at least 60 exposures, at a minimum, for each setting.

ToO Information

• ---(Empty)---

ToO Activators List

• ---(Empty)---

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