README web version of /home/usg/OPS/MTS/readme_xml/readme_75021900

Principal Investigator Email Address

• rmendez@das.uchile.cl

Estimated Total Execution Time (hours, including overheads)

• 16:59:13.0

General Description

• The program consists of 13 RR Lyrae variable stars to be observed spectroscopically
   in order to measure their radial velocities and metallicities. They are distant
   (~40 kpc, V~18-19.8) halo stars. 
  We wish to obtain a high S/N in the spectral region of the Ca II H and K lines.
  All the stars in the program have a large amplitude (~1 mag). Thus, the relative
   brightness of the targets shown in the finding charts may be different at the moment
   of taking the spectra.
  The spectra will be taken at random phases on the pulsation cycle of the stars.
   We calculated the exposure times so we can have a decent S/N even if the stars are
   observed at minimum light.
  The program also contains some radial velocity standard stars.

Waiver Requests

• No Waiver Request was submitted

Critical Observing Condition Constraints

• N/A

Time-Critical Aspects

• We request two observations for most of our science targets (eg. OBs RR424_1
   and RR424_2) in order to obtain spectra at two different random phases during the
   pulsation cycle. The second spectra must be taken on a different night (or at least
   4 hours apart).

Special Execution Requirements

• Our program includes 5 radial velocity standards to be observed during
   the run. Since our observations will likely span for several nights, we will prefer
   to have only one standard observed in a night when our science targets are observed
   too. Thus, the 5 standards should be observed in 5 different nights.

Special Calibration Information

• N/A

ToO Information

• N/A

ToO Activators List

• N/A

Is this a Pre-imaging run ?

• false

Pre-imaging Requirements

• N/A

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 ?

• YES

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 FORS2 Phase 2 web page ?

• N/A