README web version of /home/usg/OPS/MTS/readme_xml/readme_81502301

Principal Investigator Email Address

```
juhasz@mpia.de
```

Estimated Total Execution Time (hours, including overheads)

```
1
```

General Description

This proposal is aimed at measuring the spatial distribution of 
crystalline silicates in the outbursting YSO EX Lupi. This source
has been undergoing the strongest outburst in 50+ years since this
january. Pre-outburst Spitzer spectra do not show evidence for
crystalline silicates, but in-outburst Spitzer spectra show large
amounts of crystalline material, which thus must have been synthesised
in the outburst. We now wish to directly locate this material using
MIDI spectroscopy.

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

For reliable calibration we request clear conditions.

The timing is somewhat critical as well, as outlined in the next point.

Time-Critical Aspects

Since the source is fading, it is important that the MIDI measurements
 are
done asap, i.e. preferably in july.

Relatively relaxed LST intervals have been assigned (2 hours or more), in order
to "hit the right spots" in the UV plane

Special Execution Requirements

---(Empty)---

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 ?

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 ?

```
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 ?

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 15:40:26 2009
If you have comments, please contact usd-help@eso.org