README web version of /home/usg/OPS/MTS/readme_xml/readme_75038901

Principal Investigator Email Address

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lvanzi@eso.org
```

Estimated Total Execution Time (hours, including overheads)

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3 h 8 m
```

General Description

This is a spectroscopic program to observe two MIR bright clusters in
 NGC 5253. The main target is the brightest object observable in NGC 5253 at wavelengths
 longer than 2 micron, identifying it should be no problem. The measured flux of
 this object in N band is about 1.4-1.5 Jy, which according to the ETC of VISIR would
 give a S/N=10 detection in less than 2 seconds. There is a fainter target which
 can be observed simultaneously setting the slit to a proper orientation. This is
 clearly indicated in the finding chart. The PA in principle should require no adjustment
 but please double check in case the second target is detected in the acquisition
 image. The two clusters are less than 3" away, the chopping amplitude has been set
 to 12" to keep both of them in the slit all the time. The observations are divided
 in 4 OBs, one for each grating setting.

Waiver Requests

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No Waiver Request was submitted
```

Critical Observing Condition Constraints

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none
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Time-Critical Aspects

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none
```

Special Execution Requirements

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none
```

Special Calibration Information

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standard calibrations
```

ToO Information

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ToO Activators List

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Is this a Pre-imaging run ?

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false
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Pre-imaging Requirements

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Source(s) of Pre-imaging

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Pre-imaging sources not listed above

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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 ?

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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 ?

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N/A
```

If you are observing Moving Targets, have you attached suitable ephemeris files to your OBs?

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N/A
```

If you have preferences which OBs should be executed first, did you make use of the User Priority field in the OBs ?

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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 ?

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N/A
```

If the provided finding chart is at a different wavelength than the observations, did you clearly describe in the README file how to identify the target?

Did you specify a guide star brighter than V=12mag within a field of r=5arcmin around the science target?

```
N/A
```

Last creation of page: Tue Oct 6 15:40:07 2009
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