README web version of /home/usg/OPS/MTS/readme_xml/readme_84033405

Principal Investigator Email Address

```
A.Quirrenbach@lsw.uni-heidelberg.de
```

Estimated Total Execution Time (hours, including overheads)

```
3
```

General Description

MIDI GTO observations of bright AGB stars. Targets are typically brighter
 than calibrators, but more resolved. The program is aimed at monitoring a number
 of cool stars. We anticipate that some of the observations cannot be carried out
 within the time constraints - this should not have any influence on the others.
 / About the variability of the target stars (AAVSO): V Hya = has two periods: [1:]
 18 month with variability in V with V between 6.5 - 9.5 mag (next MAXIMUM in February
 2010); [2:] 17 years with a 2-3 years minimum light phase with 13 mag in V (next
 minimum light phase will be 2010-2013), the V mag between these minima is given
 by [1] / R Hya = variability in V with V between 4 - 10 mag, period: 11 month (next
 MINUMUM in Nov/Dec 2009) / W Hya = variability in V with V between 6 - 9 mag,  period:
 12 month (next MAXIMUM in December 2009) / About the variability of the calibrator
 stars (HIP, Combined General Catalogue of Variable Stars): Alpha Hya = Vmag variable
 with an amplitude < 0.06 mag / All stars almost not variable in N-band / Please
 take aquisition images.

Waiver Requests

```
No Waiver Request was requested
```

Critical Observing Condition Constraints

```
none
```

Time-Critical Aspects

```
none
```

Special Execution Requirements

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Special Calibration Information

Alpha Hya = Vmag variable with an amplitude < 0.06 mag (HIP)

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 ?

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 ?

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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 ?

```
N/A
```

Did you indicate for each science star OB the corresponding calibrator star OB (and vice versa) in the 'Instrument Comments' field ?

Did you check that your chosen calibrator is bright enough for the instrument mode used ?

If you use calibrator stars which are not in the CalVin database, did you specify their characteristics in the README file and in the OBs ?

```
N/A
```

Did you verify that your coordinates are as accurate as possible (2Mass coordinates recommended) and that they include proper motions if available ?

Did you specify the LST range of the calibrators such that they cover the range from 30 min before the start of the LST range of the science target to 30 min after the end of the LST range of the science target ?

Last creation of page: Tue Oct 6 15:40:31 2009
If you have comments, please contact usd-help@eso.org