README web version of /home/usg/OPS/MTS/readme_xml/readme_78009600

Principal Investigator Email Address

• plynam@eso.org

Estimated Total Execution Time (hours, including overheads)

• 06:00:42

General Description

• Ks imaging attempt to detect very low surface brightness halos in the
   environs of Brightest Cluster Galaxies IC 5353 and IC 5358 (2 OBs named "IMG_Ks_SCI_*").
   PLUS 2 OBs per galaxy for calibration/control sky fields (4 OBs named "IMG_Ks_SKY_*")
   --- of which, 1 *MUST* be executed IMMEDIATEly SEQuentially to the SCIence OB and
   the 2nd can potentially be executed at ANYTIME.
  
  (a) See "Special Execution Requirements" --- which control ambient sky conditions
   and monitor pupil rotation effects; 
  
  (b) Guaranteeing NO VIGNETTING removes a potential source of spurious luminosity
   gradient. 
  
  Notes about Acquisition:
  
  (1) AQUISITION (SCI):
  For "IMG_Ks_SCI_*" OBs: Acquire interactively by centroiding on the dominant brightest
   central condensation in the field. After acquisition template is complete, the OB
   enters the first (of 2) science templates, taking a first science exposure at the
   acquisition position, then offsetting the pointing *away* from this position to
   a flanking field in the galaxy envelope and taking a second science exposure. The
   pointing does NOT return to origin before the OB enters the second (of 2) science
   template and takes a further set of science exposures.
  
  The science exposures are expected to appear indistinguishable from a random sky
   field, with no apparent central source. Ensure NO VIGNETTING occurs at any time.
  
  (2) ACQUISITION (SKY): 
  For IMG_Ks_SKY_* OBs: Non-interactive, blind presets. Ensure NO VIGNETTING occurs
   at any time.

Waiver Requests

• Waiver request 078.B-0096B.01.WAV (2006-07-31) granted:
  
  1) OBs with execution times longer than 1 hour (with the standard long OB restrictions).
  
  2) Sequential execution of OBs (with the long class C OB restrictions).

Critical Observing Condition Constraints

• 1) SEQUENTIAL (SCI->SKY) execution of calibration/control sky field(s)
   required --- see "Special Execution Requirements"
  
  2) Select guide stars carefully such that NO VIGNETTING occurs at any time during
   any OB.

Time-Critical Aspects

• SEQUENTIAL (SCI->SKY) execution of calibration/control sky field(s)
   required --- See "Special Execution Requirements".

Special Execution Requirements

• SEQUENTIAL (SCI->SKY) execution of calibration/control sky field(s)
   required: 
  If a "IMG_SCI_Ks_*" OB is executed (01:30), then the corresponding "IMG_Ks_SKY_*-IMMEDIATE_SEQ"
   OB (00:45) *MUST* be executed immediately afterwards. (Optimally, the additional
   corresponding "IMG_Ks_SKY_*-ANYTIME" (00:45) OB will be executed in sequence following
   the "IMG_SKY_Ks_*-IMMEDIATE_SEQ" OB).

Special Calibration Information

• SEQUENTIAL (SCI->SKY) execution of calibration/control sky field(s)
   required --- See "Special Execution Requirements".

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 ?

• 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 ?

• 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 you submitted OBs for standard stars, did you use the provided StandardStar
 templates ?

• N/A

If you are using a specific offset pattern or position angle, did you
 check carefully the definition in the manual ?

• YES

If you are doing spectroscopy, did you draw the slit on the Finding Charts
 ?

• N/A

Did you enter the magnitude of the brightest star in the field-of-view
 in the 'Instrument Comments' field of each OB ?

• N/A

If you use the MoveToPixel acquisition, have you given clear instructions
 on the FC and in the OB comment section as to how the field should be centered ?

• YES