README web version of /home/usg/OPS/MTS/readme_xml/readme_80051100

Principal Investigator Email Address

```
labadie@mpia.de
```

Estimated Total Execution Time (hours, including overheads)

```
16
```

General Description

This run aims at achieving the spatially resolved spectroscopy at low-resolution
 of the circumstellar disk of HR 4796 A. The disk is nearly edge-on and its major
 axis has a PA of +27 deg from Noth to East (see finding chart). The acquisition
 phase place the source at the center of the detector. The long-slit (32" long, 1"
 width) must be aligned along the major axis of the disk (+27 deg), and the chopping
 and nodding must be executed within the slit. In N, the disk is extended by ~1"
 from the star.
The target has a companion at 7" distance (HR 4796 B, see finding chart), but HR
 4796A is the brightest source of the region in N.
Finding charts have been added for each OB: at 10 microns HR4796A should be the
 brightest star in a 2x2 arcmin FOV

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

For this run, high-angular resolution is very important, therefore particular
 attention should be paid to seeing and airmass.

Time-Critical Aspects

No special time critical aspects for this run.
Using the ESO observability tool, we found that, in P80, HR 4796 can be observed
 at airmass<1.5 from beginning of January to end of March (end of the period)

Special Execution Requirements

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Special Calibration Information

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ToO Information

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ToO Activators List

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Is this a Pre-imaging run ?

```
false
```

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 ?

```
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
```

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?

Last creation of page: Tue Oct 6 15:40:21 2009
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