README web version of /home/usg/OPS/MTS/readme_xml/readme_77035701

Principal Investigator Email Address

```
bergeron@iap.fr
```

Estimated Total Execution Time (hours, including overheads)

```
35.95 hr
```

General Description

The aim of the programme is the spectroscopic identification of z~4 (g
 dropout) and z~5 (r dropout) LBGs in one of the deep field of the CFHT Legacy Survey.
 The high z LBG candidates have been identified in the CFHTLS D4 field using colour
 selection criteria, together with population synthesis models, and applying size
 and magnitude constraints. The VIMOS pre-imaging data enable a detection of only
 the brigther g dropouts.
The current OBs concern the four CFHTLS D4 fields for which VIMOS pre-imaging has
 been obtained out of the 
requested seven CFHTLS D4 fields. For the remaining three fields, MOS OBs will be
 done when their pre-imaging data will become available. Therefore, the execution
 time mention below is 4/7 of the allocated 
VIMOS-MOS time (i.e. roughly 36.0 hr).

Waiver Requests

```
077.A-0357B.01.WAV
```

Critical Observing Condition Constraints

good seeing (<0.8"), as requested in the proposal to be able to detect
 compact g and r dropouts down to AB magnitues of 25, togeter with clear sky and
 airmass smaller than 1.2 and lunar illumination samller than 0.4

Time-Critical Aspects

```
none
```

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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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 ?

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 15:40:12 2009
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