README web version of /home/usg/OPS/MTS/readme_xml/readme_82018100

Principal Investigator Email Address

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mgieles@eso.org
```

Estimated Total Execution Time (hours, including overheads)

```
10 hours
```

General Description

This is a very simple imaging program - NIR mosaic (2x2 FOV) of the bright
 grand sprial galaxy M83. However, please also have a look at the "special execution
 requirements" for some notes. 

The goal of the program is to do a wide-field near infrared imaging of M83 in order
 to study its star cluster population. In particular, we aim at improving the detection
 of very young (< 5 Myr) clusters in order to determine the embedded cluster initial
 mass function. Additionally, we will search for clusters of intermediate ages (1
 - 10 Gyr) shedding light on the star formation history beyond  the age range accessible
 to optical studies. The combination of NIR with optical data allows us to constrain
  ages of clusters in this ?intermediate? age range. With the proposed depth (K =
 21.5) we are able to study massive ( > 10^4 M) clusters over the full age range
 of the galaxy.

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

Best seeing, if possible, is highly appreciated.

Time-Critical Aspects

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no comments
```

Special Execution Requirements

The whole mosaic of the galaxy consists of 4 fields (see the figure attached).
 Each field should be observed in four filters (J,H,Ks, and BrG) accordingly. We
 would like to ask to observe the K-band OBs at the best possible seeing conditions.
 The highest priority during the execution should be given to K-band and JH-band,
 the corresponding OBs: M83_JH_field(x) and M83_K_field(x), where x - is the number
 of the field.

Please also note, we use quite large sky offsets - up to 1225" (the galaxy is huge
 and we had to go on sky as far as possible).

Special Calibration Information

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not nedeed
```

ToO Information

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N/A
```

ToO Activators List

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N/A
```

Is this a Pre-imaging run ?

```
false
```

Pre-imaging Requirements

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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 ?

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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
```

If you submitted OBs for standard stars, did you use the provided StandardStar templates ?

```
N/A
```

If you are using a specific offset pattern or position angle, did you check carefully the definition in the manual ?

```
N/A
```

Did you enter the magnitude of the brightest star in the field-of-view in the 'Instrument Comments' field of each OB ?

If you use the MoveToPixel acquisition, have you given clear instructions on the FC and in the OB comment section as to how the field should be centered ?

```
N/A
```

Last creation of page: Tue Oct 6 15:40:26 2009
If you have comments, please contact usd-help@eso.org