README web version of /home/usg/OPS/MTS/readme_xml/readme_76055600

Principal Investigator Email Address

• gchauvin@eso.org

Estimated Total Execution Time (hours, including overheads)

• 12:56

General Description

• Simple N-band imaging program of faint substellar companions to two stars:
   Gl229 and GJ1048. 
  We are using AutoChopNod within the filters PAH1, PAH2 and SIV. 
  
  The purpose is to image both, star and companion, within the small VISIR FoV (19"
   by 19"). Offsets have been added in the acquisition to place the barycenter of both
   objects in the middle of the FoV. The position and chopping angles has also been
   rotated to keep both components in the VISIR FoV while chopping and nodding. 
  
  ACQUISITION: The primaries should be bright enough, Gl229 (0.5Jy at 10um) and GJ1048
   (0.13Jy at 10um), to be seen during the acquisition, in order to center it within
   the VISIR FoV. After centering the bright star, small blind offsets wiil be applied.
   Then, the PARALLEL Chopping/Nodding pattern of the bright primary should appear
   on the LEFT part of the detector for the observations. And the companion (probably
   not visible) should be on the RIGHT part.
  
  Finding charts are taken from 2MASS K images and a drawing presents also how we
   expect to see the binary system on the VISIR FoV. 
  
  - Gl229A. M1 star, 0.5Jy at 10um.
    Gl229B. The companion is located at Sep = 7.8" and PA = 163deg. 
    Expected flux @10microns = 4.2mJy.
  
  - GJ1048A. K3 star, 0.13Jy at 10um.
    GJ1048B. The companion is located at Sep = 11.9" and PA = 251.7deg. 
    Expected flux @10microns = 2.3mJy.
  
  In case of problem, please contact G. Chauvin or M. Sterzik.

Waiver Requests

• No Waiver Request was submitted

Critical Observing Condition Constraints

• none

Time-Critical Aspects

• none

Special Execution Requirements

• none

Special Calibration Information

• none

ToO Information

• none

ToO Activators List

• none

Is this a Pre-imaging run ?

• false

Pre-imaging Requirements

• none

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 ?

• N/A

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

If the provided finding chart is at a different wavelength than the observations,
 did you clearly describe in the README file how to identify the target?

• YES

Did you specify a guide star brighter than V=12mag within a field of
 r=5arcmin around the science target?

• NO