README web version of /home/usg/OPS/MTS/readme_xml/readme_75504200

Principal Investigator Email Address

• rih@phys.lsu.edu

Estimated Total Execution Time (hours, including overheads)

• 6.5hrs

General Description

• HIT imaging observations of a newly discovered X-ray transient. We aim
   to measure the time delay between the X-ray (as observed by XTE) and the optical
   lightcurves. This will give us information on the location and size of the reprocessing
   regions in such systems. The expected delay is ~10 seconds, so completley simultaneous
   observations are required. Please see the time critical aspects section!

Waiver Requests

• No Waiver Request was submitted

Critical Observing Condition Constraints

• We will suffer from very poor seeing, as it will affect the photometric
   accuracy, even with the comparison star observable in the slit. So please do not
   observe if seeing worse that 2" (not likely, I hope)

Time-Critical Aspects

• We need to be simultaneous with the X-ray satellite XTE. 
  We have managed to get them to schedule the satellite for the following times....
  
  local night	UT day		UT hours
  night 1
  15/16 July	16 July		01:10 - 02:08
  15/16 July	16 July		02:45 - 03:20
  
  night 2
  16/17 July	17 July         23:12 - 00:09
  16/17 July	17 July         00:46 - 01:44
  16/17 July	17 July         02:21 - 02:54
  
  Therefore, if possible, please start the OB "SXT-15july" at ~00:55 on UT 16/7 
  (local 15-16/7) and OB "SXT-16july" at 23:00 (ie in twilight) on UT 17/7 (local
   16-17/7).
  These OBs should last long enough to cover the entire XTE coverage. If the OB runs
   quicker
  than predicted (ie quicker set-ups), please add some exposures to ensure we cover
   the 
  entire UT range shown above.
  
  However, as we cannot use these as they are longer than 1hr and we have no time
   to 
  get a waiver. Please execute the OB "SXT-1hr" at the start times above and increase
   the
  number of exposures to 78 (night 15/7) and 130 (nigh 16/7). These will cover the
   entire X-ray
   observations and not exceed our 8 hour time allocation. I will deal with this issue
   when I
   am on the mountain next week. 
  
  Many, many thanks!

Special Execution Requirements

• Please ensure that both the target and the comparison are in the slit.
   If necessary, please make small OFFSROT so that they fall into the slit. This is
   necessary to improve the photometric accuracy of the mode.

Special Calibration Information

• ---(Empty)---

ToO Information

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ToO Activators List

• ---(Empty)---

Is this a Pre-imaging run ?

• false

Pre-imaging Requirements

• ---(Empty)---

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 ?

• YES

If you have prepared your finding charts with tools other than FIMS,
 do they comply with the specifications on the FORS2 Phase 2 web page ?

• N/A