README web version of /home/usg/OPS/MTS/readme_xml/readme_76036700

Principal Investigator Email Address

```
dwilman@mpe.mpg.de
```

Estimated Total Execution Time (hours, including overheads)

```
0.5
```

General Description

A short PHOTOMETRIC observeration of a SDSS merging cluster at z=0.069.
 At this redshift, the [OII] emission line lies in the centre of our chosen narrow
 band filter window. By comparing with the SDSS photometry and spectroscopy, we can
 use this photometric observation to characterize the ZP of this narrow band (numerous
 stars and spectroscopically observed galaxies in the field). Due to allocation,
 this is forced to become a PILOT project at this stage.
We can later come back to this target and observe dithered positions in CLR conditions,
 to build a mosaic image in [OII] emission of galaxies in the merging cluster and
 infall regions, down to 5mags below M* (SDSS limit). NO EXTRA CALIBRATION FRAMES
 ARE REQUIRED! We can test the ZP calibration techniques using this data.
Note: within the short allocated time, dithering overheads are too great. However,
 we will perform a 3-frame pointed observation on this occasion (STARE mode). Most
 targets will not be affected by cosmic rays or bad pixels, allowing an efficient
 calibration of ZP using the remainder of targets.

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

Observing conditions should be as good as requested in the OB. 
i.e. Moon illumination < 0.7; PHOTOMETRIC conditions.
No extra constraints.

Time-Critical Aspects

```
No time-critical contraints.
```

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
```

Did you set 'New Preset' flag in all acquisition templates to 'True'?

Have all your submitted OBs the same filter for the acquisition template and for the first science template?

Did you combine calibration templates with science templates for any OB?

Did you combine imaging and spectroscopic templates for any OB?

Did you submit any Focus template?

Last creation of page: Tue Oct 6 15:40:10 2009
If you have comments, please contact usd-help@eso.org