README web version of /home/usg/OPS/MTS/readme_xml/readme_82017401

Principal Investigator Email Address

```
rayjay@astro.utoronto.ca
```

Estimated Total Execution Time (hours, including overheads)

```
0.66
```

General Description

This is a pre-imaging run for MOS mask preparation for program 382.C-0174(A),
 consisting of 3 OBs for 3 fields in Cham I. Each OB consists of one exposure of
 10 seconds and one exposure of 120 seconds, both in the R-band.

Within the airmass constraint, these pre-imaging OBs should become executable in
 the morning hours starting from about early to mid December 2008. This leaves about
 3-3.5 months for the execution of the pre-imaging, preparation of the MOS masks
 + OBs and execution of the science OBs. We therefore hope you will be able to execute
 this pre-imaging run during the month December.

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

Airmass constraint: VIMOS pre-imaging and MOS are required to be obtained
 within 2 hours of the meridian. The targets rise to an airmass of about 1.65 at
 the meridian, hence the airmass constraint of <1.7-1.8 (differs per OB).

Seeing and lunar phase: constraints of <=1.0" seeing and 0.7 lunar illumination
 were chosen to obtain sufficient signal-to-noise for the I=22 magn sources in our
 fields, based on the ETC.

Time-Critical Aspects

```
N/A
```

Special Execution Requirements

```
N/A
```

Special Calibration Information

```
N/A
```

ToO Information

```
N/A
```

ToO Activators List

```
N/A
```

Is this a Pre-imaging run ?

```
true
```

Pre-imaging Requirements

This is a pre-imaging run for 382.C-0174(A), no special requirements applicable.

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 15:40:26 2009
If you have comments, please contact usd-help@eso.org