README web version of /home/usg/OPS/MTS/readme_xml/readme_81065602

Principal Investigator Email Address

```
sstefl@eso.org
```

Estimated Total Execution Time (hours, including overheads)

```
1.18
```

General Description

UVES observations of delta Sco, one of the closest Be stars, complete
 the quasi-simultaneous interferometric (AMBER) observations of its circumstellar
 disk. The aim of the spectroscopic observations is to get the high-resolution emission
 profiles of H I Balmer and Paschen lines, 
which will be modeled consistently with the interferometric observations in order
 to to derive detailed geometrical and physical characteristics of its circumstellar
 disk and -using the previous observations- to study the disk evolution.

Waiver Requests

The target is very bright and in fact the only bright object in the field.
 The finding chart is useless and was not attached to OBs.

Critical Observing Condition Constraints

Due to the high star brightness, the OBs can be executed at inferior weather
 conditions or during twilight. Please, modify the DIT appropriatelly, if the conditions
 are much different from the assumed ones (AM 1.6, seeing 0.8').

Time-Critical Aspects

OBs of this run (C) should be executed during April 2008, ideally separated
 by about 5 days
so that they cover evenly the whole month.

Special Execution Requirements

According to our discussion with the UVES (ex-)IS (C. Ledoux), two DIC2
 wavelengths setups 
can be executed in one OB. It means, the cross-disperser grating can be changed
 within the OB.
If this turns to be a problem for some reason, we will promptly replace the OBs.

Special Calibration Information

```
None
```

ToO Information

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ToO Activators List

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Is this a Pre-imaging run ?

```
false
```

Pre-imaging Requirements

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Source(s) of Pre-imaging

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Pre-imaging sources not listed above

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

If this is a pre-imaging run, did you select PRE-IMAGING for the Observing Category for each Observing Template ?

Do all your finding charts comply with both the general and instrument-specific Phase 2 Web Pages ?

If you submitted OBs for standard stars, did you specify the magnitude and spectral type of all standard stars in the OBs ?

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

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

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

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

If this is a run that requires coordinated observations with other facilities, did you give proper instructions in the Time-Critical Aspects Section ?

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

Last creation of page: Tue Oct 6 15:40:25 2009
If you have comments, please contact usd-help@eso.org