README web version of /home/usg/OPS/MTS/readme_xml/readme_79004300

Principal Investigator Email Address

• Mario.Schweitzer@mpe.mpg.de

Estimated Total Execution Time (hours, including overheads)

• 2

General Description

• We want to  observe 1Zw1 and a PSF-star in two Filters. (PAH1,SIV2)
  Three OBs are prepared. The second observationblock contains the measurement of
   the PSF-star with two filters (PAH1,SIV2). The order of observation should be 1.)
   1ZW1 (PAH1) 2.) PSF-star (PAH1) and PSF-star (SIV2) 3.)1ZW1 (SIV2). The finding
   chart for 1Zw1 is roughly at the observed wavelength. The source (1Zw1) will be
   the brightest source at the observed wavelength and should be easy to identify.
  We need good seeing conditions (at least 0.8'') and a stabil atmospherical condition
   between the observations so that the PSF stays stabil. 
  FOR THE SAME REASON THE OBSERVATION HAS TO BE DONE SUBSEQUENTLY WITHOUT A LONGER
   INTERRUPTION BETWEEN THE SINGLE OBSERVATIONS !!! 
  The PSF-star HD 4128, which is a ESO mid-IR calibration standard star, has a IRAS
   12 mu flux of 39.31 Jy. It s the only source in the field of view and should easy
   be identified at the observed wavelength.

Waiver Requests

• Waiver Request is submitted and excepted / WaiverID:079.B-0043A.01
  
  We need a continous observation (2 hours in total) for the single OBs since we need
   a stabil atmospherical 
  condition between the single observations. We want to resolve the spatially extended
   silicate emission in 1Zw1. For this we have to measure the PSF (using a PSF star)
   within the same filters as 1Zw1.
  Since its difficult to resolve the spatial extension in this source it is nessesary
   to have a good and comparabel PSF measurement with respect to the observation of
   1Zw1.

Critical Observing Condition Constraints

• the seeing should be better or equal to 0.8''

Time-Critical Aspects

• no

Special Execution Requirements

• no

Special Calibration Information

• no

ToO Information

• no

ToO Activators List

• no

Is this a Pre-imaging run ?

• false

Pre-imaging Requirements

• no

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 ?

• 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