README web version of /home/usg/OPS/MTS/readme_xml/readme_84069200

Principal Investigator Email Address

```
mortena@gmail.com
```

Estimated Total Execution Time (hours, including overheads)

```
6
```

General Description

This program will obtain SINFONI observations of selected fields within
 the massive Galactic star cluster Westerlund 1. We will obtain spectra of cluster
 member candidates to determine their spectral class. With the spectral class determined
 the objects will be placed in the HR diagram and the cluster age and consequently
 distance will be determined. 
The observations are in nonAO mode. The source density is sufficently low that AO
 is not needed and we benefit from the larger field of view provided by the 250mas
 pixel scale. 
The seeing requirement are rather strict as approved in phase 1, 0.6 arcseconds.
 This is necessary to clearly separate the individual sources within the field of
 view. 
The sources are relatively faint. We have set a relatively long aquasition integration
 time to help the observer identify our target. 
The observations are in a typical nodding pattern to provide good sky subtraction
 for the data. Integration time on both on and off is 150 seconds, but we do two
 DITS at the on position but only one at the sky position
Note the region is heavily reddened, Av=10-11 mag. The finding charts are from K
 band images of the cluster obtained at the NTT using SOfI. The seeing is similar
 to that requested here. The magnitude for the brightest star within the SINFONI
 field is marked on each finding chart.

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

There are no critical observing conditions

Time-Critical Aspects

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N/A
```

Special Execution Requirements

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No special execution requirements
```

Special Calibration Information

---(Empty)---

ToO Information

---(Empty)---

ToO Activators List

---(Empty)---

Is this a Pre-imaging run ?

```
false
```

Pre-imaging Requirements

---(Empty)---

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 ?

```
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 indicate the magnitude of the brightest object in the field in each SINFONI OB?

If you are using the AO: Did you indicate for every OB the magnitude of the guide star, and its distance to the target (if any)?

```
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 make really sure that none of your OBs ever saturates the detector?

If you are using the AO: did you enter the correct Strehl Ratio (on-axis, K-band) AND the seeing value in the constraint set?

```
N/A
```

Last creation of page: Tue Oct 6 15:40:32 2009
If you have comments, please contact usd-help@eso.org