README web version of /home/usg/OPS/MTS/readme_xml/readme_77043800

Principal Investigator Email Address

• gchauvin@eso.org

Estimated Total Execution Time (hours, including overheads)

• 24:00

General Description

• Simple N-band imaging program of faint substellar companions to 4 stars:
   HR7329, HD130948, HR7672 and Gl570. We are using AutoChopNod within the filters
   PAH1, PAH2 and SIV. 
  
  The purpose is to image both, star and companion (except for Gl570, only the 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. 
  
  !!!PLEASE, IF POSSIBLE, COULD YOU REDUCE THE CHOPPING AMPLITUDE MANUALLY TO 6" INSTEAD
   OF 8"!!!
  
  
  ACQUISITION: 
  
  - HR7329, HD130948 and HR7672. The primaries should be bright enough, HR7329 (0.4Jy
   at 10um), HD130948 (0.5Jy at 10um) and HR7672 (0.5Jy 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. 
  
  - Gl570D (16mJy at 10um). Here we do directly a BLIND POINTING on the faint companion.
   We therefore completely rely on the telescope and coordinates precision to image
   the faint companion Gl570 D in the VISIR FoV.
  
  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.
  
  - HR7329A. A0V star, 0.4Jy at 10um.
    HR7329B. The companion is located at Sep = 4.2" and PA = 167deg.
    Expected flux @10microns = 1.6mJy.
  
  - HD130948A. G1V star, 0.5Jy at 10um.
    HD130948B. The companion is located at Sep = 2.6" and PA = 104.5deg.
    Expected flux @10microns = 7.0mJy.
  
  - HR7672A. G1V star, 0.5Jy at 10um.
    HR7672B. The companion is located at Sep = 0.8" and PA = 157.0deg.
    Expected flux @10microns = 2.0mJy.
  
  - Gl570D. L Dwarf Companion. BLIND POINTING.
    Expected flux @10microns = 16.0mJy.
  
  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

• standard

ToO Information

• ---(Empty)---

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 ?

• 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 ?

• N/A

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 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?

• N/A

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

• N/A