README web version of /home/usg/OPS/MTS/readme_xml/readme_82501700

Principal Investigator Email Address

• emason@eso.org

Estimated Total Execution Time (hours, including overheads)

• 3:57 hr when executing just 1 acqusition and 1 through slit.

General Description

• Simple LSS spectrsocopy with FORS1 and GRIS 600V. 
  
  The target, a so called andi-dwarf nova, is in a low state, i.e. it is much fainter
   than it appears in the attached finding charts. 
  The currently expected V mag is about 18-18.5 (while during normal/bright state
   it is at V=12.9 mag).
  The target is in the center of the FCs (i.e. ignore the red cross in the 'Aladin
   created FC').
   
  The program consists in time resolved spectroscopy: i.e. 21 exposures (each lasting
   10 min), should be taken during 4 consecutive hrs. 
  
  I have created 3 identical OBs but only the acquistion of the first OB should be
   executed. 
  Please execute OB N.2 and N.3 skipping both the acquisition and the through slit.
  PLEASE RESET THE ADC BEFORE STARTING OB N.2 AND OB N.3 (this is the reason why I
   created 3 OBs in place of a single one).

Waiver Requests

• Waiver has been submitted in order to get the approval of the 4 consecutive
   hours of observations.
  The need of 4 consecutve hr of observation was already clearly stated in the propsal.

Critical Observing Condition Constraints

• In the proposal I have asked for clear sky, seeing of about 1 and grey
   time. 
  Of course, given that the target is setting and the proposal evaluation/approval
   took its time, I accept reasonable overriding of the requested conditions, as it
   is important to have the data.

Time-Critical Aspects

• The target is at 23 hr (i.e. IS SETTING) and needs to be monitored in
   a single night for 4 consecutive hours. Hence, the program should be executed as
   soon as possible.

Special Execution Requirements

• Please skip both the acquisition and the through slit of OB N.2 and OB
   N.3. 
  Please RESET the ADC BEFORE starting OB N.2 and OB.3.

Special Calibration Information

• Observations are performed with the 1" long slit. 
  Please adjust the MOS offset (SPEC.TARG parameter) accordingly (LSS_1.0_arcsec)
   when executing the spectrophotometric standard during the twilight.

ToO Information

• this is not a ToO, but a TIME CRITICAL program.

ToO Activators List

• NA

Is this a Pre-imaging run ?

• false

Pre-imaging Requirements

• NA

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 ?

• N/A

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 have prepared your finding charts with tools other than FIMS,
 do they comply with the specifications on the FORS1 Phase 2 web page ?

• YES