README web version of /home/usg/OPS/MTS/readme_xml/readme_80045600

Principal Investigator Email Address

• r.napiwotzki@herts.ac.uk

Estimated Total Execution Time (hours, including overheads)

• 12.4

General Description

• The aim of this run is the measurement of the radial velocity curve and
   determination of the orbital period of the white dwarf binary WD0837+185. We measured
   RV variations in a set of 
  UVES spectra taken in a previous semester. 
  
  The period is unknown, values between few hours and some days are possible. This
   determines our observing strategy. OBs should be distributed over a number of nights
   as detailed below.  
  
  Please note, that the constraints on observing conditions are not very strict. Observations
   under conditions slightly worse than specified are acceptable, if neceassary to
   complete a time critical OB.
  
  The WD0806-661 observations will be used for calibration purposes and can be taken
   anytime.

Waiver Requests

• No Waiver Request was submitted

Critical Observing Condition Constraints

• --

Time-Critical Aspects

• Observing strategy for the science target (WD0836+185):
  
  Two nights in which three OBs have to be executed (night1 and night2 OBs).
  One night in which two OBs have to be executed (night3 OBs).
  The remaining OBs should be carried out on a one OB per night basis. 
  
  The exact sequence of 3 OB, 2OB, 1OB nights is not critical, but it would be good
   if very large gaps (>10 days) between nights with observations can be avoided.
   All WD0837+185 OBs are identical.
  
  Example of a possible schedule for the OBs:
  
  Night 1: OBs WD0837_night1a, WD0837_night1b, WD0837_night1c
     Start with WD0837_night1a as early as possible during the night. 
     _night1b should be best observed in the middle of the night and _night1c as late
   
     as possible.
  
  Night 2: OBs WD0837_night2a, WD0837_night2b, WD0837_night2c
     Same as night 1
  
  Night 3: OBs WD0837_night3a, WD0837_night3b
     _nigh3a/_night3b are best taken at the begin/end of the night (or shortly after/before
     rise/set of the object).
  
  Other nights: 
     OBs: WD0837_later1, WD0837_later2, WD0837_later3, WD0837_later4, WD0837_later5
     Execute one OB and only one, whenever possible.

Special Execution Requirements

• ---(Empty)---

Special Calibration Information

• One spectrum of the featureless DC WD0806-661 will be used to correct
   for the spectral 
  response of UVES.

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 ?

• YES

Have you specified the S/N ratio at given wavelength in the User Comments
 field of each OB?

• 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 ?

• 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

If you need secondary guiding, are there suitable objects within 30 arcsec
 from your target ?

• N/A