README web version of /home/usg/OPS/MTS/readme_xml/readme_76026501

Principal Investigator Email Address

```
carla.cacciari@bo.astro.it
```

Estimated Total Execution Time (hours, including overheads)

```
1.0
```

General Description

We observe the galaxy NGC253 with VIMOS (MOS+HR-blue) for spectroscopic
 confirmation of the candidate globular clusters previously found from 2.2m+WFI BVI
 images. Four fields around the center of the galaxy will be observed, to map with
 VIMOS the equivalent field of view of the WFI.
These Mos observations will taken in run (A).
The run (B) here described is dedicated to the pre-imaging of the four fields.
On each field we take a 225 sec exposure with filter R, and we consider an additional
 overhead of about 12 min (including preset, GS aquisition, setup and readout as
 estimated from the manual). 
Assuming the OBs exposure time equal to 4x225 sec the P2PP total execution time
 for the pre-imaging run (B) is 60 min.

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

The observing conditions specified in the OBs are not particularly critical

Time-Critical Aspects

```
None
```

Special Execution Requirements

```
None
```

Special Calibration Information

```
None
```

ToO Information

```
NA
```

ToO Activators List

```
NA
```

Is this a Pre-imaging run ?

```
true
```

Pre-imaging Requirements

Since NGC253 culminates at the beginning of Period 76, pre-imaging could
 be taken already at the end of Period 75 (now). This is acceptable and preferable
 for us.

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 ?

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 15:40:09 2009
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