README web version of /home/usg/OPS/MTS/readme_xml/readme_77079001

Principal Investigator Email Address

• napolita@na.astro.it

Estimated Total Execution Time (hours, including overheads)

• 14.0h

General Description

• These observations are aimed at primarily measure faint intragroup star
   emission. We expect to measure features down to 26.5 mag/arcsec^2 (I band). This
   challenging program requires particular care in sky background determination and
   subtraction (decribed in further details in Special execution requirement section).
   This fact implies the observation of an OFF pointing which, in practice, causes
   the need of doubling the telecope time. In this Phase II OB preparation we have
   realised that during the proposal compilation we have underestimated overheads.
   In order to respect the constraints of 14h telescope time approved by the OPC, we
   needed to discard one of the broad band filters (I band indeed).

Waiver Requests

• No Waiver Request was submitted

Critical Observing Condition Constraints

• none

Time-Critical Aspects

• none

Special Execution Requirements

• These observations are aimed at measuring very faint intragroup star emission.
   We expect to measure features down to 26.5 mag/arcsec^2 (I band). In order to reduce
   sky background contamination, we desperately need for every OB an OFF target observation
   in an empty area for sky background determination of the same depth and in the same
   observing conditions. In order to do that and optimise telescope time, we decided
   to collect science ON-target exposures and Sky Background exposures in separate
   OBs to be executed contiguously, pair by pair, as specified in the USER COMMENT
   SECTION.

Special Calibration Information

• 1) We would be glad of take benefit from middle night photometric standard
   on top of usual begin/end night standard.
  
  2) VERY IMPORTANT: sky flat should be at least 3 per night and ADU's counts should
   be not less than 20000. This is also specified in calibration 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 ?

• 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

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

• YES

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?

• NO

Did you combine imaging and spectroscopic templates for any OB?

• N/A

Did you submit any Focus template?

• YES