README web version of /home/usg/OPS/MTS/readme_xml/readme_75004101

Principal Investigator Email Address

• ratzka@mpia.de

Estimated Total Execution Time (hours, including overheads)

• 01:59:10.000

General Description

• This is a simple imaging programme with the aim to derive exact photometry
   of VV CrA in different bands (U, B, V, R, and I).
  
  The brightness of VV CrA is almost unknown in the optical. Moreover, the source
   is variable. Therefore, we can only estimate the exposure times in the different
   filters from the spectral type (hard, since it is a YSO) and a few old V-band measurements.
   It will be probably necessary to adjust the DITs to ensure that the exposures are
   taken in the linear range of the detector with a reasonable signal-to-noise-ratio.
   In the acquisition exposure a DIT that is equal to the DIT of the science template
   has been chosen. The acquisiton image thus can be used to adjust the DIT in the
   science part of the OBs. This procedure may save time.  
  
  We suggest to start with the V-band followed by the R- and I-band filters, where
   the object should be fairly bright (circumstellar dust). Then the B-band (priority
   2) and the U-band (lowest priority) should follow. If we will run out of time, please
   skip the U-band measurements.

Waiver Requests

• No Waiver Request was submitted.

Critical Observing Condition Constraints

• Photometric conditions are needed.

Time-Critical Aspects

• no Critical Time Aspects

Special Execution Requirements

• no Special Execution Requirements

Special Calibration Information

• It is necessary that photometric calibrators are taken in all used filters.
   They should be part of the Calibration Plan.

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