README web version of /home/usg/OPS/MTS/readme_xml/readme_82023700

Principal Investigator Email Address

```
rauw@astro.ulg.ac.be
```

Estimated Total Execution Time (hours, including overheads)

```
1.0
```

General Description

The idea is to obtain UVES spectra of the rather bright O-type binary
 system 9 Sgr during its visibility windows in October 2008 and March 2009. The ultimate
 goal of this project is to establish the orbital solution of this long-period system.
 I have prepared 4 OBs: two in the red and two in the blue. One red and one blue
 for October and the same for March. Please note that the red and blue exposures
 need not necessarily be taken on the same night.

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

```
N/A
```

Time-Critical Aspects

As stated above, the observations need to be taken during the visibility
 windows for 9 Sgr in period 82.
9Sgr_obs1_red and 9Sgr_obs1_blue: between 1 October and 7 November 2008
9Sgr_obs2_red and 9Sgr_obs2_blue: between 25 February and 31 March 2009

The time windows specified above (and in the OBs) roughly match the visibility windows
 of the target. Therefore, there is no point to attempt observations outside these
 windows.

Special Execution Requirements

```
N/A
```

Special Calibration Information

The standard calibrations as foreseen in the calibration plan are sufficient.

ToO Information

```
N/A
```

ToO Activators List

```
N/A
```

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

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 ?

```
N/A
```

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 ?

```
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 ?

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
```

Last creation of page: Tue Oct 6 15:40:26 2009
If you have comments, please contact usd-help@eso.org