README web version of /home/usg/OPS/MTS/readme_xml/readme_80015000

Principal Investigator Email Address

• oleg@astro.uu.se

Estimated Total Execution Time (hours, including overheads)

• 11

General Description

• Observations consist of the time resolved spectroscopy of the rapidly
   pulsating A star. Data are to be obtained on 4 different nights, for 2.5-3 hours
   each night. There are 4 similar observing blocks. Each consists of 129-155 science
   exposures and one attached wavelength calibration.
  
  The two higher priority OBs (hr3831_A and hr3831_B) should be executed at specific
   nights in order to cover certain rotation phases of the star. This information cannot
   be entered in "time intervals" field of OBs because the number of suitable nights
   exceeds 5. Instead, we give the list of suitable nights for each OB in "Time-Critical
   Aspects". This information is repeated in "Special Execution Requirements".
  
  The two lower priority OBs (hr3831_C and hr3831_D) can be executed on any night.

Waiver Requests

• The total length of each OB is 2.5-3 hours (waiver request submitted 25-07-2007,
   ID: 080.D-0150A.01, approved 31-07-2007). 
  
  To maximize the duty cycle we are using fast readout mode "625kHz,4ports,low gain"
   (waiver request submitted 25-07-2007, ID: 080.D-0150A.01, approved 31-07-2007).

Critical Observing Condition Constraints

• We accept the risk of degrading observing conditions (seeing, sky transparency)
   after first hour of OB execution. However, OB execution has to be started sufficiently
   early during the night so that last scientific exposures are obtained when the star
   is at airmass<2.0.

Time-Critical Aspects

• Due to the length of OBs (2.5-3h), observations have to be obtained during
   the period when the star is above airmass 2.0 longer than the toal length of one
   OB. This period starts around 2008-01-01 and lasts until the end of Period 80.
  
  The two lower priority observing blocks (hr3831_C and hr3831_D) can be executed
   on any night.
  
  The two higher observing blocks (hr3831_A and hr3831_B) should be executed at particular
   rotation phases of the star. Suitable dates (corresponding to the beginning of the
   night, Chilean time) are
  
  For hr3831_A:
  2008-01-03
  2008-01-06
  2008-01-17
  2008-01-20
  2008-01-23
  2008-01-26
  2008-02-06
  2008-02-09
  2008-02-12
  2008-02-15
  2008-02-26
  2008-02-29
  2008-03-03
  2008-03-06
  2008-03-17
  2008-03-20
  2008-03-23
  
  For hr3831_B:
  2008-01-07
  2008-01-10
  2008-01-13
  2008-01-16
  2008-01-27
  2008-01-30
  2008-02-02
  2008-02-05
  2008-02-16
  2008-02-19
  2008-02-22
  2008-02-25
  2008-03-04
  2008-03-07
  2008-03-10
  2008-03-13
  2008-03-24
  2008-03-27
  2008-03-30

Special Execution Requirements

• We ask to avoid, if possible, interruptions in OB execution. 
  
  The two lower priority observing blocks (hr3831_C and hr3831_D) can be executed
   on any night.
  
  The two higher priority observing blocks (hr3831_A and hr3831_B) should be executed
   at particular rotation phases of the star. Suitable dates (corresponding to the
   beginning of the night, Chilean time) are
  
  For hr3831_A:
  2008-01-03
  2008-01-06
  2008-01-17
  2008-01-20
  2008-01-23
  2008-01-26
  2008-02-06
  2008-02-09
  2008-02-12
  2008-02-15
  2008-02-26
  2008-02-29
  2008-03-03
  2008-03-06
  2008-03-17
  2008-03-20
  2008-03-23
  
  For hr3831_B:
  2008-01-07
  2008-01-10
  2008-01-13
  2008-01-16
  2008-01-27
  2008-01-30
  2008-02-02
  2008-02-05
  2008-02-16
  2008-02-19
  2008-02-22
  2008-02-25
  2008-03-04
  2008-03-07
  2008-03-10
  2008-03-13
  2008-03-24
  2008-03-27
  2008-03-30

Special Calibration Information

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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 ?

• N/A

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 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 ?

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

• N/A