README web version of /home/usg/OPS/MTS/readme_xml/readme_75044501

Principal Investigator Email Address

```
c.g.bassa@astro.uu.nl
```

Estimated Total Execution Time (hours, including overheads)

```
03h29m26s
```

General Description

These are 4 imaging runs designed to sample the globular cluster NGC 6809
 in B, R and Halpha. One OB uses short exposures to capture the brighter stars of
 the cluster, the other OBs use long exposures for the fainter stars. Since crowding
 is not an issue for the brighter stars there are taken under moderate seeing constraints,
 0.9", whereas the deep OBs need good seeing (0.6" or less). These deep OBs use 1x1
 binning to better sample the PSF.

Waiver Requests

A waiver request to use FORS2 with 1x1 binning was submitted and approved.

Critical Observing Condition Constraints

```
N/A
```

Time-Critical Aspects

```
N/A
```

Special Execution Requirements

```
N/A
```

Special Calibration Information

Three OBs for taking B, R and Halpha flatfields with 1x1 binning are specified.
 When the three science OBs using 1x1 binning are taken within two to three days,
 flatfields taken on one of these days will suffice. If the science OBs are taken
 further apart, please execute the calibration OBs at each night.

No photometric standards need to be observed with 1x1 binning. The standard calibration
 plan using 2x2 binning will suffice.

ToO Information

```
N/A
```

ToO Activators List

```
N/A
```

Is this a Pre-imaging run ?

```
false
```

Pre-imaging Requirements

```
N/A
```

Source(s) of Pre-imaging

---(Empty)---

Pre-imaging sources not listed above

---(Empty)---

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 ?

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
```

If you have prepared your finding charts with tools other than FIMS, do they comply with the specifications on the FORS2 Phase 2 web page ?

Last creation of page: Tue Oct 6 15:40:07 2009
If you have comments, please contact usd-help@eso.org