README web version of /home/usg/OPS/MTS/readme_xml/readme_75046002

Principal Investigator Email Address

• jean-gabriel.cuby@oamp.fr

Estimated Total Execution Time (hours, including overheads)

• 1hr51'

General Description

• This is a pre-imaging VIMOS run. There are 3 OBs. Waivers have been requested
   and approved, they are described below. The most important point concerns the large
   offsets that are applied between exposures (between 5' and 6'). A consequence of
   this is that the guide star will be lost, and the telescope operator will have to
   manually select guide stars for the 2nd and 3rd frame for each OB. This is OK, obviously
   with the ones that vignet less the fov. If a slight telescope offset (up to 30"
   or so) can help to pick up a guide star at the edge of the field, please do so,
   my constraints on the position of each pointing is within this range.
  
  There are 2 'long' OBs mapping the field with these large offsets. The overheads
   due to changing guide stars are accounted for on my time: in total the 3 OBs have
   a p2pp exec time of ~ 2 hrs whereas 3 hrs are allocated on this pre-imaging run.
   That was discussed with Oli and approved through a waiver.
  
  The 3rd OB is with a special rotator offset chosen to fit with the geometry of one
   particular object to follow up in spectroscopy.
  
  I take this opportunity to say hello to all !

Waiver Requests

• 3 waiver requests were submitted and accepted:
  i) use non standard rotator position on sky. In practice, 0 to orient slits E-W
   for the 2 long OBs, and a special angle for the 3rd OB
  ii) relax airmass constraint. Pre-imaging can be taken at up to 1.4-1.5 airmass
  iii) amplitude of telescope offsets. Offsets are large, overheads accounted.

Critical Observing Condition Constraints

• N/A

Time-Critical Aspects

• N/A

Special Execution Requirements

• None

Special Calibration Information

• N/A

ToO Information

• ---(Empty)---

ToO Activators List

• ---(Empty)---

Is this a Pre-imaging run ?

• true

Pre-imaging Requirements

• ---(Empty)---

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 ?

• 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 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
 ?

• 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
 ?

• N/A