README web version of /home/usg/OPS/MTS/readme_xml/readme_84015600

Principal Investigator Email Address

• kfb@phys.au.dk

Estimated Total Execution Time (hours, including overheads)

• 10.5

General Description

• This is observations of the unresolved detached eclipsing binary s986
   in the open cluster M67. The aim is to measure masses of the components from radial
   velocity measurements. The OBs are quite long because the secondary star of the
   system is very faint.

Waiver Requests

• A Waiver Request was approved for OBs longer than one hour.

Critical Observing Condition Constraints

• OBs are time-critical and are to be executed during specified time-intervals,
   see 'Time-Critical Aspects'.

Time-Critical Aspects

• We need to observe the eclipsing binary at certain phases. Possible UT
   observing intervals for each OB is given below and in the 'time intervals' section
   of the individual OBs (but the 'time intervals' section only allow 5 intervals to
   be specified and therefore more intervals exist than specified there). On a given
   night only one OB is to be executed, and on nights where more than one OB can be
   observed, it does not matter which one is executed.
  
  Possible UT observing intervals for each OB:
  
  s986_P84_epoch_1:
  -----------------------------------------
  2009-11-30T22:00:00 - 2009-12-03T10:00:00
  2009-12-10T22:00:00 - 2009-12-13T10:00:00
  2009-12-20T22:00:00 - 2009-12-21T10:00:00
  2010-01-10T22:00:00 - 2010-01-13T10:00:00
  2010-01-21T22:00:00 - 2010-01-23T10:00:00
  2010-02-01T22:00:00 - 2010-02-03T10:00:00
  2010-02-10T22:00:00 - 2010-02-13T10:00:00
  2010-02-21T22:00:00 - 2010-02-22T10:00:00
  2010-03-05T22:00:00 - 2010-03-06T10:00:00
  2010-03-13T22:00:00 - 2010-03-16T10:00:00
  2010-03-23T22:00:00 - 2010-03-24T10:00:00
  -----------------------------------------
  
  s986_P84_epoch_2:
  -----------------------------------------
  2009-12-09T22:00:00 - 2009-12-10T10:00:00
  2009-12-13T22:00:00 - 2009-12-14T10:00:00
  2010-01-09T22:00:00 - 2010-01-10T10:00:00
  2010-01-13T22:00:00 - 2010-01-14T10:00:00
  2010-01-20T22:00:00 - 2010-01-21T10:00:00
  2010-01-23T22:00:00 - 2010-01-24T10:00:00
  2010-02-03T22:00:00 - 2010-02-04T10:00:00
  2010-02-13T22:00:00 - 2010-02-14T10:00:00
  2010-03-23T22:00:00 - 2010-03-24T10:00:00
  -----------------------------------------
  
  s986_P84_epoch_3 AND s986_P84_epoch_4:
  -----------------------------------------
  2009-12-15T22:00:00 - 2009-12-17T10:00:00
  2009-12-25T22:00:00 - 2009-12-26T10:00:00
  2010-01-05T22:00:00 - 2010-01-08T10:00:00
  2010-01-15T22:00:00 - 2010-01-18T10:00:00
  2010-02-04T22:00:00 - 2010-02-08T10:00:00
  2010-03-07T22:00:00 - 2010-03-08T10:00:00
  2010-03-13T22:00:00 - 2010-03-16T10:00:00
  2010-03-23T23:00:00 - 2010-03-24T10:00:00
  -----------------------------------------

Special Execution Requirements

• Note that previous observations have shown that we do not need telluric
   standard star observations, and therefore no telluric standard OBs exist.
  
  High wavelength calibration accuracy is important and therefore the OBs include
   ThAr before and after the science exposures.

Special Calibration Information

• ---(Empty)---

ToO Information

• ---(Empty)---

ToO Activators List

• ---(Empty)---

Do the README file and the instrument comments of the telluric stars
 OBs include the required S/N/pixel of the spectrum of the telluric star, its spectral
 type and allowed spectral range?

• N/A

Do any OBs include wavelength or flatfield calibrations?

• YES

If you are observing Moving Targets, have you attached suitable ephemeris
 files to your OBs?

• N/A

If the slit viewer guide star is different from the target, are the RA
 and DEC offsets accurate to within 0.05 arcsec and do they take into account the
 relative proper motion between the two objects?

• N/A

If you have preferences which OBs should be executed first for objects
 at similar RA, did you make use of the User Priority field in the OBs?

• N/A