README web version of /home/usg/OPS/MTS/readme_xml/readme_79061302

Principal Investigator Email Address

```
skraus@mpifr-bonn.mpg.de
```

Estimated Total Execution Time (hours, including overheads)

```
2
```

General Description

We aim to resolve the structure of the circumstellar material around the
 FU Orionis star V346Nor using MIDI and the PRISM.

MIDI measurements in P75 have shown that the average flux of V346Nor over the N-band
 is 5 Jy (strongly increasing towards longer wavelengths).  For Coude guiding, we
 recommend to use V346Nor itself (V=16.3 mag).

For this run, we requested in the original proposal the UT2-UT4 baseline.  However,
 since it turned out that in the required LST range observations on this baseline
 are not feasible, we asked for a change of baseline (from UT2-UT4 to UT1-UT3), which
 was approved.  Therefore, the OB "SCI_V346Nor_UT13_1" should be carried out on the
 UT1-UT3 baseline.

Besides the standard calibrator HD152820 (which is at later right ascension than
 the science target), we prepared OBs for an alternative calibrator at earlier right
 ascension (HD138816).

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

```
None.
```

Time-Critical Aspects

```
None.
```

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 ?

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

```
N/A
```

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 15:40:19 2009
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