README web version of /home/usg/OPS/MTS/readme_xml/readme_81070500

Principal Investigator Email Address

• mmora@dfa.uv.cl

Estimated Total Execution Time (hours, including overheads)

• 17h

General Description

• General:
  
  The goal of this observation is to measure the kinematics of the surrounding region
   on which the two interacting 
  globular clusters are located. Also aims to measure the kinematic between the star
   clusters.
  The objects are located in the Sersic region in NGC 5128 (Centaurus A), next to
   the dust line.
  
  Since NGC 5128 is a bright galaxy, the science frames will be contaminated by the
   galaxy light. 
  Thus, we have to measure the light coming from it. This is achieved by offsets during
   the exection of the Obs.
  
  
  Waiver:
  
  We requested a waiver for OBs longer than one hour. The waiver was approved  (081.D-0705A.01.WAV).
  
  
  Observations:
  
  The observations are divided in 10 OBs of 1.5h each, 1 OB of 1 hr and, two OBs of
   the radial velocity standard stars of 0.5 hr each one. 
  Total execution time = 17 hr.
  
  In the 1.5 OBs we do the following:
  We integrate  1585 sec and later an offset of -1.19 arcsec is done.  After the offset,
   the telescope should return to the origin, 
  i.e. RA=13:25:26.860; DEC=-43:00:09.87 (J2000).
  Then, a third exposure of 600 sec with an offset in RA=1.399" and DEC=-14.683" is
   done. This offset aims to measure the light coming from the galaxy and it will be
   used for  subtraction of the galaxy light  from the science frame. 
  The position of the telescope for the third exposure should be: RA=13:25:28.259
   DEC=-42:59:55.23 (J2000).
  
  In the 1 hr OB we do the following:
  We  integrate 1545 sec and then we measure the brightness of the galaxy (galaxy
   light) with an offset at the same position of the third exposure in the OBs of 1.5
   hr.
  
  In the 0.5 hr OBs we measure the radial velocity standard stars.
  Both are in the range of V~ 8, therefore (according to the exposure time calculator)
   the telescope should not be saturated. 
  The stars should be acquired in the four quadrants. The integration time is 5 sec.
  
  
  Science Finding Charts:
  
  
  The finding chart IFU_SCI_Interacting0.jpg is a finding chart showing  the position
   of the FOV in NGC5128.
  
  The other two finding charts were done with HST WFPC2 image and they are located
   where the globular clusters are. They show
  the surrounding region and all the features.  Therefore, most of the point-like
   objects will not be resolved.  
  
  One finding chart corresponds to the science object, file named INTERACTING_SCIENCE.jpg.
   The 
  other one (INTERACTING_SCIENCE_SKY.jpg) is the finding chart where we aim to measure
   the light from the galaxy. (i.e. 
  where the telescope should be RA=13:25:28.259; DEC=-42:59:55.23; J2000).

Waiver Requests

• A waiver was requested (OBs longer than 1 hr).
  The waiver was approved (081.D-0705A.01.WAV).

Critical Observing Condition Constraints

• None

Time-Critical Aspects

• None

Special Execution Requirements

• ---(Empty)---

Special Calibration Information

• ---(Empty)---

ToO Information

• ---(Empty)---

ToO Activators List

• ---(Empty)---

Is this a Pre-imaging run ?

• false

Pre-imaging Requirements

• ---(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 ?

• 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

Did you specify suitable guide stars for all your OBs using Guidecam
 ?

• N/A

Did you check that the chosen guide stars are suitable for all the offset
 positions and that they do not produce unacceptable vignetting of the field of view
 ?

• N/A