README web version of /home/usg/OPS/MTS/readme_xml/readme_77008100

Principal Investigator Email Address

• gosset@astro.ulg.ac.be

Estimated Total Execution Time (hours, including overheads)

• 10h

General Description

• The aim of the present project is to acquire spectra of the binary system
  HD166734 (O7+O9, period 34.5 days) in order to derive a modern radial
  velocity curve. Each observation (one OB) is constituted of 2 scientific
  exposure (1450 s, split in two exposures is for technical reasons) 
  on the object and of one wavelength calibration of 60 s.
  The whole execution time is about one hour. Ten spectra were already acquired
  in period 75 (rather well distributed in phase). We would like here to acquire
  ten other spectra in order to reach the necessary density in phase coverage. 
  The ten OBs are identical and are numeroted from 01 to 10. The best way would be
  to acquire one spectrum (one OB execution) every two nights during 20 
  consecutive nights. This is too restrictive for ESO Service Mode. 
  We hope that acquiring the spectra at random
  will be sufficient to reach the requested phase coverage. The only rule
  to follow is that each spectrum should be separated from any other by (at least)
   ONE
  night without observations .

Waiver Requests

• No Waiver Request was submitted

Critical Observing Condition Constraints

• No Absolute constraints. Only one rule (see Time-Critical Aspects)

Time-Critical Aspects

• Only one rule to be followed (Please):
  
  every observation (one OB execution) has to be separated from any other
  observation by a minimum of one full night without observation.
  
  Otherwise there are no absolute Time-Critical Aspects

Special Execution Requirements

• Only one rule to be followed (Please):
  
  every observation (execution of one OB) has to be separated from any other 
  by a minimum of one full night without observations.

Special Calibration Information

• ---(Empty)---

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 ?

• N/A

Have you included OBs for any calibrations that you need but which are
 not part of the Calibration Plan ?

• YES

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

Did you set 'New Preset' flag in all acquisition templates to 'True'?

• YES

If you use any lamp, did you check that it should never be left on at
 the end of any OB?

• YES