README web version of /home/usg/OPS/MTS/readme_xml/readme_77027900

Principal Investigator Email Address

• nagel@astro.uni-tuebingen.de

Estimated Total Execution Time (hours, including overheads)

• 15:00:00

General Description

• This is a LSS spectroscopy programme consisting of two targets (low mass
   X-ray binaries). 
  One is a field star, the other is in a globular cluster, both stars are faint (21.2
   mag). 
  For one target there are five OBs for science exposure, using grism 600B. For the
   other target there are also five OBs using grism 600B, and additional five OBs using
   grism 600R 
  and Filter GG435+31.
  For the field star, two finding charts (10'x10' and 5'x5') are given. For the star
   in the globular cluster, there is only one finding chart (1'x1'), created from a
   WFPC image with high resolution. 
  
  The star 4U1850-087, which is the one located in the globular cluster, can not be
   identified in the acquisition image of VLT. We decided to perform a blind offset
   with a rotated slit (see finding chart). Very near to the target is a bright star,
   which can be identified, and with the rotated slit it is possible to have both stars
   in the slit. The offset to the target is small (below 0.5 arcsec), so even after
   offset the reference star will be in the slit. 
  
  The finding charts for each OB of target one are the same, and the charts for each
   OB of target two also:
  
  OB: 2S0918-549 B1    Chart: 077.D-0279A.001.jpg, 077.D-0279A.002.jpg
  OB: 2S0918-549 B2    Chart: 077.D-0279A.001.jpg, 077.D-0279A.002.jpg
  OB: 2S0918-549 B3    Chart: 077.D-0279A.001.jpg, 077.D-0279A.002.jpg
  OB: 2S0918-549 B4    Chart: 077.D-0279A.001.jpg, 077.D-0279A.002.jpg
  OB: 2S0918-549 B5    Chart: 077.D-0279A.001.jpg, 077.D-0279A.002.jpg
  
  OB: 4U1850-087 B1    Chart: 077.D-0279A.003.jpg
  OB: 4U1850-087 B2    Chart: 077.D-0279A.003.jpg
  OB: 4U1850-087 B3    Chart: 077.D-0279A.003.jpg
  OB: 4U1850-087 B4    Chart: 077.D-0279A.003.jpg
  OB: 4U1850-087 B5    Chart: 077.D-0279A.003.jpg
  OB: 4U1850-087 R1    Chart: 077.D-0279A.003.jpg
  OB: 4U1850-087 R2    Chart: 077.D-0279A.003.jpg
  OB: 4U1850-087 R3    Chart: 077.D-0279A.003.jpg
  OB: 4U1850-087 R4    Chart: 077.D-0279A.003.jpg
  OB: 4U1850-087 R5    Chart: 077.D-0279A.003.jpg

Waiver Requests

• No Waiver Request was submitted

Critical Observing Condition Constraints

• The sky transparency should be clear, the seeing 1.2", airmass 1.5, the
   lunar illumination not more than 0.5 and the moon angular distance not less than
   30 degree.

Time-Critical Aspects

• There are no time-critical aspects

Special Execution Requirements

• There are no special execution requirements.

Special Calibration Information

• No special calibration needed.

ToO Information

• This is not a ToO programme.

ToO Activators List

• ---(Empty)---

Is this a Pre-imaging run ?

• false

Pre-imaging Requirements

• No Pre-imaging is required for this programme.

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 ?

• N/A