README web version of /home/usg/OPS/MTS/readme_xml/readme_82008700

Principal Investigator Email Address

• wimu@few.vu.nl

Estimated Total Execution Time (hours, including overheads)

• 15:59:12.000

General Description

• Our single science target is a z_em=2.831 QSO with magnitude about 17.4
   in V. There is a damped Lyman alpha system at z_abs=2.811 which is known to contain
   molecular hydrogen. Our primary goal is to obtain high S/N spectra between 350 and
   450nm to cover the molecular hydrogen absorption lines.
  
  The science object transits near vertical over Paranal. Please avoid executing OB
   during transit; that is, please execute at least 1 hour before transit or any time
   after transit.
  
  Each OB is essentially the same: all OBs use dichroic 1 and they all contain an
   attached ThAr wavelength calibration template. Half the OBs use the 390+564nm setting,
   the other half use the 390+580nm setting.
  
  Over the past decade, this object's brightness has changed from time to time by
   about 0.5mag in V. Therefore, it is possible that the object is a little fainter
   (or brighter) than used to calculate the S/N at 500nm in the Instrument Comments
   field in each OB.

Waiver Requests

• No Waiver Request was submitted

Critical Observing Condition Constraints

• None, apart from the constraint set specified in each OB.

Time-Critical Aspects

• None.

Special Execution Requirements

• The science object transits near vertical over Paranal. Please avoid executing
   OB during transit; that is, please execute at least 1 hour before transit or any
   time after transit.

Special Calibration Information

• A ThAr wavelength calibration template is included after the science exposure
   in each OB.

ToO Information

• None.

ToO Activators List

• None.

Do all your OBs comply with the instrument-specific requirements listed
 on the instrument-specific Phase 2 web page ?

• YES

Do all your finding charts comply with both the general and instrument-specific
 Phase 2 Web Pages ?

• YES

If you submitted OBs for standard stars, did you specify the magnitude
 and spectral type of all standard stars in the OBs ?

• N/A

Have you specified the S/N ratio at given wavelength in the User Comments
 field of each OB?

• YES

Have you included OBs for any calibrations that you need but which are
 not part of the Calibration Plan ?

• N/A

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

• N/A

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

• N/A

If this is a run that requires coordinated observations with other facilities,
 did you give proper instructions in the Time-Critical Aspects Section ?

• N/A

If you need secondary guiding, are there suitable objects within 30 arcsec
 from your target ?

• N/A