README web version of /home/usg/OPS/MTS/readme_xml/readme_83019803

Principal Investigator Email Address

• meilland@mpifr-bonn.mpg.de

Estimated Total Execution Time (hours, including overheads)

• 4

General Description

• We want to make a 3 images mosaic of the extended nebula (i.e ~1' in the
   visible) surrounding the B[e] star HD87643.
  
  In N band this nebulae mainly extents in the East-West orientation. ISO measurements
   in this orientations show a residual 15Jy emission in a 14"x20" field of view at
   25" from the central source. No emission have been detected in the Nord-South orientation.
  
  Thus, we ask for :
  
  - 1 image centered in the star : HD87643_img-0 
  - 1 image with a R.A. offset of +25arsecs : HD87643_img-1
  - 1 image with a R.A. offset of -25arsecs : HD87643_img-2
  
  Each of these observations have to be done in 3 differents filters (PAH1, PAH2,
   and SIV_1) and with the large field of view (32.5"x32.5").
  
  The chopping and nodding have to be executed in the Nord-South orientation at the
   maximum possible distance (i.e 30") in order to avoid contamination by the extended
   nebulae.
  
  We would prefer that all observations are done in the same night to make the mosaic
   reconstruction easier.
  
  
  
  We have an additional 45min for this run. Thus we ask, to observe in the same mode
   an other B[e] star surrounded by an extended nebulae from our accepted program :
   Hen 3-1300. As for HD87643, observations in with VISIR burst mode with the small
   field of view has been planned in visitor mode in run 083.D-0198(A) . 
  
  Chopping for this star should be P.A.=135 degrees as the nebulae extend mainly in
   the perpendicular direction and at the maximum distance available (i.e 30").

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

• ---(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 ?

• 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?

• NO