README web version of /home/usg/OPS/MTS/readme_xml/readme_75026400

Principal Investigator Email Address

• maurogor@obs-nice.fr

Estimated Total Execution Time (hours, including overheads)

• 05:35:30.000

General Description

• This program intends to map the central region of the galaxy cluster Abell
   2384, through Rc,B, and medium-band filter MB 721/25 (intending to map the H-alpha
   emission redshifted at the cluster redshift z=0.1) imaging of the same 30'x30' central
   region centered at:
  
  RA:  21:52:18.900, Dec: -19:34:42.000, Eq: 2000
  
  R and B imaging be PRE-IMAGING in order to prepare catalogs of galaxies targets
   for a multi-object spectroscopy run at the 3.6m telescope with EFOSC2 (075.A-0264B)
   beginning 2005 August 14th. The R-imaging will allow to perform a clean star-galaxy
   separation and the combination of B and R imaging will allow to derive the color
   distribution of the objects, and thereby establish the Red Sequence of elliptical
   galaxies of the cluster. Selecting these objects for spectroscopy will allow us
   to reduce strongly the star contamination and the foreground/background contamination
   by galaxies not belonging to the cluster targeted, roughly doubling the efficiency.
  
  Observations are listed in the 7 following observing blocks: A2384_Rc-1, A2384_Rc-2,
   A2384_B-1, A2384_B-2, A2384_Ha-1, A2384_Ha-2,A2384_Ha-3,
  The Rc imaging will consist of 2 x 5 exposures of 300s each, detailed in OBs A2384_Rc-1,
   A2384_Rc-2
  The B imaging  of 2 x 5 exposures of 300s each, detailed in OBs A2384_B-1, A2384_B-2,
  The MB 721/25  imaging of 3 x 5 exposures of 580s each, detailed in OBs  A2384_Ha-2,A2384_Ha-3,
  
  Be aware there is a bright Bmag=9.32 star in the field: U0675_36690332.

Waiver Requests

• No Waiver Request was submitted

Critical Observing Condition Constraints

• We need clear observing conditions and dark lunar phase, as specified
   in our proposal (paragraph 9, lunar phase justification).
  Notice that, due to an unfortunate slip, the box concerning the moon requirement
   in the third paragraph (description of the observing run) was left set to "n" instead
   of "d".
  We would be very grateful if these observations reaching faint magnitudes (R~23)
   are performed within a week from the new moon.

Time-Critical Aspects

• This imaging run must be performed BEFORE multi-object spectroscopy scheduled
   at the 3.6m/EFOSC2 from 2005 August, 14 to 17, as requested in the proposal (paragraph
   13, scheduling requirements) and contrarily to the present schedule, because we
   have to process the images to get the catalog of target for spectroscopy and then
   to prepare the observations with EFOSC2, we would appreciate to get the data at
   least one month before the spectroscopic run. Thanks for your help.

Special Execution Requirements

• ---(Empty)---

Special Calibration Information

• A spectrophotometric calibrator (Feige 110 for instance) and a FF sequence
   are requested for the special filter used: MB 721/25 ESO847. This is detailed in
   obs. block Feige110_Halpha.

ToO Information

• ---(Empty)---

ToO Activators List

• ---(Empty)---

Is this a Pre-imaging run ?

• true

Pre-imaging Requirements

• R and B imaging are PRE-IMAGING in order to prepare catalogs of galaxies
   targets for a multi-object spectroscopy run at the 3.6m telescope with EFOSC2 (075.A-0264B)
   beginning 2005 August 14th. The R-imaging will allow to perform a clean star-galaxy
   separation and the combination of B and R imaging will allow to derive the color
   distribution of the objects, and thereby establish the Red Sequence of elliptical
   galaxies of the cluster. Selecting these objects for spectroscopy will allow us
   to reduce strongly the star contamination and the foreground/background contamination
   by galaxies not belonging to the cluster targeted, roughly doubling the efficiency.

Source(s) of Pre-imaging

• WFI

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 ?

• 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 ?

• YES

Did you set 'New Preset' flag in all acquisition templates to 'True'?

• N/A

Have all your submitted OBs the same filter for the acquisition template
 and for the first science template?

• YES

Did you combine calibration templates with science templates for any
 OB?

• YES

Did you combine imaging and spectroscopic templates for any OB?

• NO

Did you submit any Focus template?

• NO