README web version of /home/usg/OPS/MTS/readme_xml/readme_84082101

Principal Investigator Email Address

• boekel@mpia.de

Estimated Total Execution Time (hours, including overheads)

• 0.6

General Description

• The goal of this UVES observation is to provide a "snapshot" of the shock/density/temperature
  conditions in the DG Tau jet, at approximately the same epoch as the VISIR [NeII]
   observations
  are done. 
  
  The airmass constraint of 1.7 allows for a window of a bit over 2.5 hours per night
   for this
  ~36 minute observation to be performed (the source is rather far in the north).
   That seems
  not over-stringent.

Waiver Requests

• No Waiver Request was submitted

Critical Observing Condition Constraints

• none other than given in the "constraint set" field of the OB,
  and the request to try to do this observation relatively close
  in time to the VISIR observations (i.e. not months earlier or
  later).

Time-Critical Aspects

• If feasible, it would be good if the UVES spectrum could be taken at approximately
   the
  same epoch as the VISIR observations (give or take a week or two, this is fairly
   relaxed,
  it's just that doing one in oktober and the other in march would not be too good).
  (note that the VISIR observations themselves need to be distributed over 2-3 nights
   due
  to the northern declination of the source.

Special Execution Requirements

• The star is to be centered in the middle of the slit during the acquisition
  (i.e. there should be approximately 6 arcseconds on either side of the star
  in the 12 arcsecond slit). The spectra will then be taken at two positions
  (offset +2 arcsec and -2 arcseconds along the slit direction), so that during the
  actual integration the star will not in the middle of the slit but somewhat
  off-center along the spatial direction.
  The brightness of the star is R=11.4, and the orientation of the slit is
  P.A.= 46 degrees E of N (see also the attached finders).

Special Calibration Information

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ToO Information

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ToO Activators List

• ---(Empty)---

Do all your OBs comply with the instrument-specific requirements listed
 on the instrument-specific Phase 2 web page ?

• YES

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 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 ?

• YES

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

• N/A