README web version of /home/usg/OPS/MTS/readme_xml/readme_80062300

Principal Investigator Email Address

• hsana@eso.org

Estimated Total Execution Time (hours, including overheads)

• 30.0h

General Description

• SCIENCE: HiRes IR spectroscopy of bright (Kmag=3-7) O-type stars. 
  
  EXECUTION CONSTRAINT: Please acquire the telluric immediately AFTER the science
   (telluric OB are identified by CAL_xxxxxx-n where xxxxxx is the name of the science
   target and n=1 or 2 according to the list of settings observed). It is strongly
   advisable (best effort basis) to observe both OBs fo a given star the same night.
   The sequence should be: Science-1 -- CAL-1 -- Science-2 -- CAL-2. 
  
  CRITICAL ASPECT : SNR better than 150 should be reached in all settings (exposure
   time computed to reach it under seeing=1.2"--CLR--airmass<1.5). Better SNR will
   not arm.
  
  SPECIAL REQUEST: if the observations are carried out under better conditions, please
   start with the fainter objects ( == the ones that will really benefit from better
   conditions): 
  Kmag~7: LSS2063,HD93250, HD93130, HD57582 
  Kmag~6: HD93129A, HD76341, HD46150, HD54662, CPDm47d2963, muCol, HD73882
  
  WARNING: For the brighest (lamOriA, CAL_muNor) objects, please check that we remain
   within the linearity range
  
  TELLURIC: All telluric standards are A0V-A1V star with K<6 and are aimed to be
   observed immediately AFTER the science OB (doing it before will not always yield
   the expected airmass match). If for any reason the provided telluric can not be
   observed, it can be replaced with a similar type star with similar magnitude as
   far as a SNR>150 is obtained in all settings (WARNING=1mag difference will already
   required to modified the exp. time compared to the provided target).

Waiver Requests

• Waiver submitted to request OBs larger than 1h to be executed

Critical Observing Condition Constraints

• See General Description

Time-Critical Aspects

• See General Description

Special Execution Requirements

• See General Description

Special Calibration Information

• See General Description

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