README web version of /home/usg/OPS/MTS/readme_xml/readme_82017400

Principal Investigator Email Address

• rayjay@astro.utoronto.ca

Estimated Total Execution Time (hours, including overheads)

• 6.8

General Description

• Program 382.C-0174(A) consists of 3 OBs for 3 fields in Cham I to take
   very deep multi-object spectroscopy in 1 band: LR-Red. Each OB consists of 4 exposures
   of 1610 seconds (26 minutes and 50 seconds).
  
  The execution time for each individual OB is 2h 16m 00s. These longer than 1 hour
   OBs were approved in Waiver Request 382.C-0174(A).01.WAV.
  
  Pre-imaging was taken on Dec 17, 19 and 24 of 2008 in program 382.C-0174(B). The
   guide stars selected there are presumed to be used again for these MOS OBs.
  
  For Field 1, vignetting by the guide star is anticipated to occur in quadrant 3,
   and a little bit in quadrant 4.
  
  Within the airmass constraint, these pre-imaging OBs should be executable every
   night from January until April 2009.

Waiver Requests

• One Waiver Request (382.C-0174(A).01.WAV) to allow for the execution of
   OBs longer than one hour was submitted on January 20, 2009 and accepted on January
   21, 2009 (received acknowledgement from Marina Rejkuba).

Critical Observing Condition Constraints

• Airmass constraint: VIMOS pre-imaging and MOS are required to be obtained
   within 2 hours of the meridian. The targets rise to an airmass of about 1.65 at
   the meridian, hence the airmass constraint of <1.7-1.8 (differs per OB).
  
  Seeing and lunar phase: constraints of <=1.0 seeing and 0.7 lunar illumination
   were chosen to obtain sufficient signal-to-noise for the I=22 magn sources in our
   fields, based on the ETC.

Time-Critical Aspects

• N/A

Special Execution Requirements

• N/A

Special Calibration Information

• N/A

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 ?

• YES

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
 ?

• N/A

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
 ?

• N/A