README web version of /home/usg/OPS/MTS/readme_xml/readme_76058907

Principal Investigator Email Address

• Reynald.Pain@in2p3.fr

Estimated Total Execution Time (hours, including overheads)

• 10.0

General Description

• This spectroscopic run is part of the SuperNova Legacy Survey (SNLS) program
   aiming at identifying high redshift type Ia supernovae and at measuring their redshifts.
   Supernovae candidates are discovered and followed by the MEGACAM camera in the framework
   of the CFHT Legacy Survey (CFHTLS). They are found by a repetitive observation of
   four one square degree fields every 2 or 3 nights during grey/dark period, each
   field being observable 5-6 months per year.
  
  Spectra should be taken as near as possible to the moment of maximum luminosity
   but within the dark/gray period. Estimates of this moment are based on observations
   at the CFHT and arecommunicated to the VLT observers. As supernovae coordinates
   are not yet known, we have just submitted template OBs to take into account of the
   different instrument configurations and observation conditions. Only the coordinates
   and the reference offsets of the blind offset star have to be updated.
  
  Once one observation is completed, data should be accessible to perform a fast reduction
   and to evaluate data quality. We are therefore requesting that data are made immediately
   available through one of the ToO accounts in Garching.

Waiver Requests

• 176.A-0589H.01.WAV
  
  I am pleased to inform you that your requests to have the OBs with different lengths,
   up to 1h30, has been granted for both (G) and (H) run of the LP 176.A-0589 in P79.
   Note that the usual restriction applies that if the conditions degrade beyond the
   requested constraints after the first hour, the observation will not be repeated.

Critical Observing Condition Constraints

• As supernovae candidates are relatively faint (typically 23< magI <24.5),
   good observing conditions are required:
    * seeing < 1.0 arcsec
    * Sky transparency: clear
    * Airmass < 1.6
    * Lunar illumination < 0.6
    * Moon angular distance < 60

Time-Critical Aspects

• Due to CFHT observation program, we need that our observations are scheduled
   about 6 nights before to about 10 nights after new moon:
  - Period: April 10 to May 28 (new moon: April 17)
    * Time budget: 1 hours
    * Observed field : 10h00:02d12
  - Period: May 9 to June 27 (new moon: May 16)
    * Time budget: 1 hours
    * Observed field : 22h15:-17d44
  - Period: June 7 to June 25 (new moon: June 14)
    * Time budget: 2 hours
    * Observed field : 22h15:-17d44
  - Period: July 7 to July 25 (new moon: July 14)
    * Time budget: 2 hours
    * Observed field : 22h15:-17d44 and 02h26:-04d30
  - Period: August 5 to August 23 (new moon: August 12)
    * Time budget: 2 hours
    * Observed field : 22h15:-17d44 and 02h26:-04d30
  - Period: September 4 to September 22 (new moon: September 11)
    * Time budget: 2 hours
    * Observed field : 22h15:-17d44 and 02h26:-04d30

Special Execution Requirements

• Not Applicable

Special Calibration Information

• Not Applicable

ToO Information

• Although this program is not formally a ToO program, the observations
   are of a ToO nature. The OB details and finding charts will be submitted once the
   supernovae have been discovered.

ToO Activators List

• Stephane BASA, stephane.basa@oamp.fr
  Jeremy LEDU, ledu@cppm.in2p3.fr
  Tianmeng ZHANG, tianmeng.zhang@oamp.fr

Is this a Pre-imaging run ?

• false

Pre-imaging Requirements

• Not Applicable

Source(s) of Pre-imaging

• ---(Empty)---

Pre-imaging sources not listed above

• ---(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 ?

• 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

If you have prepared your finding charts with tools other than FIMS,
 do they comply with the specifications on the FORS1 Phase 2 web page ?

• YES