README web version of /home/usg/OPS/MTS/readme_xml/readme_75083901

Principal Investigator Email Address

• simon.lilly@phys.ethz.ch

Estimated Total Execution Time (hours, including overheads)

• 87:42 from P2PP - see waiver request submitted March 18 2005

General Description

• This program consists of survey spectroscopy of galaxies in the COSMOS
   field.  Multiple VIMOS masks are observed with the a number of telescope positions,
   with same guide stars etc.   There are always two different "bright" masks associated
   with each pointing (indicated in the OB name by "A" and "B", e.g. ZCOSMOS_53_bright_A),
   each requiring a single ~90 minute OB.
  
  In about half the pointings, there is one additional "faint" mask. The 4.5 hr exposure
   for this mask is split into 3 identical OBs each lasting ~2 hr, and labelled in
   the OB name by -part1, -part2 and -part3 at the end, e.g. ZCOSMOS_46_faint-part1.
    All three OBs (parts) of each faint mask observation should be completed before
   another faint mask is started.
  
  Waivers have been approved for the OB length and the use of the non standard filter/grism
   combination.
  
  Waiver has been received for increasing HA limit of red spectra. Such OBs are indicated
   by -am at end.
  
  Only the normal flux calibration is required and daytime spectral flats are sufficient,
   but PLEASE NOTE THE USE OF A NON-STANDARD GRISM/FILTER COMBINATION FOR BRIGHT MASKS.

Waiver Requests

• Waiver requested and granted (March 1, 2005) to use a non-standard filter+grism
   combination (OS-Red + MR).
  
  Waiver requested and granted (March 1, 2005) to use 89 minute OBs for "bright" masks.
    Waiver requested and granted (March 17, 2005) to extend this to 91 minutes and
   to use three 121 minute OBs for the "faint" masks.

Critical Observing Condition Constraints

• None

Time-Critical Aspects

• None

Special Execution Requirements

• None.  Note that we would like the three OBs, i.e. "parts", of each faint
   mask to be completed before a new faint mask is started.

Special Calibration Information

• Usual spectrophotometric calibration of grism/filter combination is required.
   
  
  Daytime acquisition of flats through each mask is required for defining slit location.

ToO Information

• N/A

ToO Activators List

• N/A

Is this a Pre-imaging run ?

• false

Pre-imaging Requirements

• N/A

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

• YES

If this is a pre-imaging run, did you select PRE-IMAGING for the Observing
 Category for each Observing Template ?

• N/A

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 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

Did you specify suitable guide stars for all your OBs using Guidecam
 ?

• YES

Did you check that the chosen guide stars are suitable for all the offset
 positions and that they do not produce unacceptable vignetting of the field of view
 ?

• YES