README web version of /home/usg/OPS/MTS/readme_xml/readme_82036700

Principal Investigator Email Address

```
m.bremer@bristol.ac.uk
```

Estimated Total Execution Time (hours, including overheads)

```
4:26
```

General Description

This run is to obtain pre-imaging and I band photometry on 6 fields which
 sample the CMB coldspot. The subsequent run will target I<24 objects spectroscopically
 to get the redshift distribution in these areas. One theory for the existence of
 the cold spot is that there is a huge void in the direction of the cold spot (at
 0.5

Waiver Requests

082.A-0367A.01.WAV [APPROVED]

Waiver request submitted 21-7-08, approved 22-7-08: Allow the use of I-band pre-imaging
 as well as R. The true pre imaging to set up the masks remains as R, but we need
 I imaging to photometrically select a sample of objects to observe spectroscopically.
 Simplest way to do this was to  set each OB to be a short set of R exposures followed
 by a longer set of I exposures, all marked as PRE-IMAGES so they are delivered simltaneously.

Critical Observing Condition Constraints

```
Dark time
```

Time-Critical Aspects

```
None
```

Special Execution Requirements

```
None
```

Special Calibration Information

None, standard calibration plan good enough to deliver/achieve photometrically-calibrated
 I images

ToO Information

```
None
```

ToO Activators List

```
None
```

Is this a Pre-imaging run ?

```
true
```

Pre-imaging Requirements

Remember that though the I band is marked as pre-imaging, we actually
 need it to select a photometric (I<24) catalogue of objects to follow up in the
 (B) run. Consequently, when the data are delivered, we need the standard calibs
 (a zero poit, bias and flats, though we will try & use the entire data set to
 flat field itself).

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 ?

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 ?

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 15:40:27 2009
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