README web version of /home/usg/OPS/MTS/readme_xml/readme_81077500

Principal Investigator Email Address

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ebernard@iac.es
```

Estimated Total Execution Time (hours, including overheads)

```
21
```

General Description

The goal of this project is twofold: first, to make a complete census
 of short-period variable stars over the observed field and study the gradients using
 the properties of these variables; and second, to obtain 
a deep color magnitude diagram to study the star formation history and spatial extension
 of this galaxy.
Therefore, we prepared 25 equal OBs with Cetus centered on chip 4 for a good sampling
 of the variable stars light curves, plus one OB where the galaxy is centered on
 chip 2 in order to cover the gaps of the previous 
pointing and sample the other side of the halo of Cetus.

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

No critical constraints, other than seeing<0.8" and dark clear sky.

Time-Critical Aspects

Since Cetus is visible with an airmass <1.5 for at least 3 hours per
 night during 24 dark nights this semester, there are no strong temporal constraints.
 However, it would be a plus if, during one or two nights, several (~4-6) OBs could
 be observed back to back.

Special Execution Requirements

```
we don't have any special requirement
```

Special Calibration Information

the standard calibration plan is enough for this project

ToO Information

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This is not a ToO project
```

ToO Activators List

---(Empty)---

Is this a Pre-imaging run ?

```
false
```

Pre-imaging Requirements

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no preimaging required
```

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 ?

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N/A
```

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

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N/A
```

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

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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
```

Did you specify suitable guide stars for all your OBs using Guidecam ?

Did you check that the chosen guide stars are suitable for all the offset positions and that they do not produce unacceptable vignetting of the field of view ?

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