README web version of /home/usg/OPS/MTS/readme_xml/readme_80063101

Principal Investigator Email Address

```
grise@astro.u-strasbg.fr
```

Estimated Total Execution Time (hours, including overheads)

```
3.3
```

General Description

This is a straightforward imaging run consisting of 10 photometric observations
 of ~ 3*242s exposure time each with the b_high filter. The goal is to study the
 variability of the optical counterpart of the ultraluminous X-ray source NGC1313
 X-2. This star has B~23.4 mag and is variable by at least 0.2 mag on a timescale
 of days. For scientific reasons, we ask preferentially that each of the photometric
 observation should be carried out directly before or after the spectroscopic observation
 (program 080.D-0631(A)). As we know that this kind of link decreases the scheduling
 possibilities of the VLT, it is however not a strict constraint.

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

No critical observing condition constraints.

Time-Critical Aspects

```
No time-critical aspects.
```

Special Execution Requirements

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Special Calibration Information

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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 ?

```
N/A
```

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 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 have prepared your finding charts with tools other than FIMS, do they comply with the specifications on the FORS1 Phase 2 web page ?

```
N/A
```

Last creation of page: Tue Oct 6 15:40:22 2009
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