README web version of /home/usg/OPS/MTS/readme_xml/readme_80506301

Principal Investigator Email Address

• bonnetbidaud@cea.fr

Estimated Total Execution Time (hours, including overheads)

• 1h 02' 15"

General Description

• Visir observations are requested
  Imaging with Field scale requested = 127 mas/pixel
  Filter PAH1 (8,59 microns)
  Seeing < 1.0 arcsec
  Transparency : THIN
  
  General Description: 
  Target : The target is Sirius-B located at date 2008.1 at :
  position angle = 97.5deg 
  separation 8.09 arcsec 
  from the bright star Sirius-A or
  8 arcsec East 
  1,2 arsec South 
  from Sirius-A 
  Coordinates of Sirius-A at date 2008.1
  RA= 06h 45min 31.26 sec
  DEC= -16deg 43' 23"
  
  Acquisition : the target Sirius-B (white dwarf) shall be put on a clean area on
   the VISIR detector. 
  This can be achieved e.g. putting the primary sirius-A on pixels 142/85 on the detector
   (from lower left corner).
  This estimate has been done using a fairly old bad pixels map. In case the selected
   area would not be clean any longer,
  the night astronomer has the freedom to eventually select another clean area.

Waiver Requests

• No Waiver Request was submitted

Critical Observing Condition Constraints

• Critical Observing Conditions Constraints: 
  Special care should be taken so that Sirius-B be located in a good-pixel region
   of the detector (see general description)

Time-Critical Aspects

• None

Special Execution Requirements

• Special Execution Requirements: 
  Due to the high flux of Sirius, and to limit the striping on the detector, we kindly
   ask to modifiy, at the time of launching
  the OB, the weather flag. The idea is to impose a lower read-out time than the one
   determined by the atmosphere, by
  steeping down by 1 step the weather flag :
  examples : if the weather flag would have been set to Good then, change it for Fair
                   if the weather flag would have been set to Fair then, change it
   for Poor
  The same applies to all OBs including the calibration OBs joined (_cal1 and _cal2)

Special Calibration Information

• Special Calibration Information:
  The target observation should be bracketted by the observations of the two calibration
   stars in correct order before and after the observation
  1) Calibration star #1 = HD 47667,  OB name : Sirius_PAH1_cal1
  2) sirius, OB name : Sirius_PAH1
  3) Calibration star #2 = HD 59717,  OB name : Sirius_PAH1_cal2

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 ?

• 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 ?

• YES

Have you included OBs for any calibrations that you need but which are
 not part of the Calibration Plan ?

• YES

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?

• YES

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

• NO