README web version of /home/usg/OPS/MTS/readme_xml/readme_81021100

Principal Investigator Email Address

• snellen@strw.leidenuniv.nl

Estimated Total Execution Time (hours, including overheads)

• 14h55m

General Description

• The aim of this program is to monitor accurate radial velocities of a
   sample 
  of 3 red giant stars. This to disenthangle the intrinsic contribution (eg from pulsations)
   and
  the genuine RV signal due to companion(s). The monitoring is required on two time
   scales.
  1) on the time-scale of 2-3 nights (on two separate occasions, 12-15 observations),
   and 
  2) on the time scale of the complete semester (15-20 observations).   
  
  We rather obtain as many observations of one of the three stars, then a bit on each
   star!
  
  ** HIP_85355 is first priority **. It can be observed during the whole semester.
  Most optimal time (for the measurements of the short time-scale variations) is May-July
  
  ** HIP_3419 and HIP_7844 are second and third priority** They are observable from
   June.
  Most optimal time (for  the measurements of the short time-scale variations) is
   Aug-Sep.

Waiver Requests

• No Waiver Request was submitted

Critical Observing Condition Constraints

• sky transparency: clear
  seeing 1.2"
  airmass<2.0

Time-Critical Aspects

• The crucial aspect of this programme is to sample the radial velocity
   variations on two
  different time-scales, 1) on 2-3 day time-scale, and 2) on a 4-5 month time scale.
  
  For 1) we require on two occasions 12-15 observations spanning 2-3 nights.
  The observations should be spaced at least 20 minutes apart. For example, 
  5 observations on night 1, 5 observations on night 2, and 2 observations on night
   3.
  
  For 2) we need 15-20 observations spanning as large part of the semester as possible.
   
  This to sample time scales up to 4-5 months. These observations should be taken
   at least
  3 nights apart.   
  
  We rather obtain as many observations of one of the three stars, then a bit on each
   star.
  
  ** HIP_85355 is first priority **. It can be observed during the whole semester.
  Most optimal time (for the measurements of the short time-scale variations) is May-July
  
  ** HIP_3419 and HIP_7844 are second and third priority** They are observable from
   June.
  Most optimal time (for  the measurements of the short time-scale variations) is
   Aug-Sep.

Special Execution Requirements

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Special Calibration Information

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ToO Information

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ToO Activators List

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Is this a Pre-imaging run ?

• false

Pre-imaging Requirements

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Source(s) of Pre-imaging

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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