README web version of /home/usg/OPS/MTS/readme_xml/readme_69059505

Principal Investigator Email Address

```
hxb@mpe.mpg.de
```

Estimated Total Execution Time (hours, including overheads)

```
2h 16m 45s
```

General Description

We will obtain a very comprehensive account of the population mix and
 star formation rate of the galaxies in very massive, x-ray selected galaxy clusters,
 and get a detailed picture of cluster dynamics.
Choosing these very rich and massive clusters as targets makes optimal use for the
 VIMOS multiplex capabilities.
Initially we are seeking spectra of I-band selected galaxies (down to 21.5 mag).
Each cluster s covered by three VIMOS observation (with 4 quadrant masks each).

We made use of the last version of VMMPS for the definition of the masks as required,
 nevertheless we got the following message after starting the Verify procedure:
** Level 4: VMMPS checks
error: Wrong VMMPS version used in vimosCQ1b_LR_Blue_M1Q1.adp (should be: "3.17")!
The same error was found for each .adp file, but then they were catalogued as valid
 at the end of the Verify.
We hope that it does not bear any problems for the observations.

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

These low-resolution blue spectra must be taken as close to the meridian
 as possible to avoid the negative effects of the atmospheric dispersion.

Time-Critical Aspects

```
none
```

Special Execution Requirements

```
none
```

Special Calibration Information

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none
```

ToO Information

```
This is not a ToO program.
```

ToO Activators List

```
none
```

Is this a Pre-imaging run ?

```
false
```

Pre-imaging Requirements

```
This is not a pre-imaging run.
```

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
```

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

```
N/A
```

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 ?

```
N/A
```

Last creation of page: Tue Oct 6 15:40:06 2009
If you have comments, please contact usd-help@eso.org