README web version of /home/usg/OPS/MTS/readme_xml/readme_79054400

Principal Investigator Email Address

• pg@crab.riken.jp

Estimated Total Execution Time (hours, including overheads)

• 3.8h

General Description

• Simple IPOL of a z=0.4 galaxy hosting an obscured AGN. The goal is to
   measure the amount of polarized AGN light scattered into the line-of-sight.
  
  ACQUISITION
  ===========
  
  The only thing to watch out for is a very bright (mag=5.6) star in the field (about
   90" from the target). The rotator angle (= minus of the position angle) has been
   chosen so as to place this star behind one of the MOS slitlets. Target has been
   observed without problems before for another project with FORS2/LSS. If, however,
   the star is evident and is a problem during acquisition, please adjust the position
   angle slightly, as needed. We provide detailed finding charts to help with this
   bright star.
  
  Also, since we are unsure how this bright star will affect the long science imaging
   OBs, if significant unwanted scattered light is evident in the FORS images after
   the first OB is completed, we would appreciate either 1) an email; and/or 2) the
   observed images, in order to decide how best to continue.
  
  Since target is very faint in B, acquisition is done in R. Any refraction offsets
   between the filters should not be too important in imaging mode. 
  
  OBs
  ===
  Four identical OBs, except that one of them is slightly shorter, in accordance with
   the total time requested.
  
  
  FINDING CHARTS
  ==============
  (Target itself is best visible in the third finding chart)
  
  079.B-544A.001.jpg : Large-scale DSS B finding chart
  079.B-544A.002.jpg : Large-scale DSS R image, showing also FORS1 PMOS slitlets (to
   ensure that the bright star is covered). 
  079.B-544A.003.jpg : FORS2 I-band zoom-in (with bright star placed in FORS2 chip-gap)
  079.B-544A.004.jpg : FORS2 I-band zoom-in, showing also FORS1 PMOS slitlets (to
   ensure that the bright star is covered). Note that this image is slightly rotated
   with respect to the others.

Waiver Requests

• No Waiver Request was submitted

Critical Observing Condition Constraints

• None.

Time-Critical Aspects

• None

Special Execution Requirements

• None. Just watch out for the bright star.

Special Calibration Information

• None. We are observing at 8 wave-plate angles in all, but the standard
   calibration set will suffice for us.

ToO Information

• ---(Empty)---

ToO Activators List

• ---(Empty)---

Is this a Pre-imaging run ?

• false

Pre-imaging Requirements

• ---(Empty)---

Source(s) of Pre-imaging

• DSS:FORS2

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 you have prepared your finding charts with tools other than FIMS,
 do they comply with the specifications on the FORS1 Phase 2 web page ?

• YES