README web version of /home/usg/OPS/MTS/readme_xml/readme_80034001

Principal Investigator Email Address

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

Estimated Total Execution Time (hours, including overheads)

```
4.5
```

General Description

The goal of this proposal is to fill the (U,V) gap at low spatial frequency
 of the precedent Medium resolution UT observations. These UT observations showed
 that the object was over-resolved and much bigger than expected. In order to be
 able to determine te shape and, eventually to detect an elongation due to the disk
 detected with MIDI, we need an (UV) widespread set of observing points at lower
 spatial frequencies.

Therefore, the observed points should be as far in hour angle as possible.

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

```
No critical constraints
```

Time-Critical Aspects

The different observations should be better done at different hour angles
 to enhance the scientific output of the proposal.

Special Execution Requirements

```
Nothing here
```

Special Calibration Information

Here are the informations about the 2 calibrators already used in the
 run 076.D-0141(A) and which prooved to be reasonable.

    *  Name		HD 109787
    * Coordinates	12:37:42.163, -48:32:28.694
    * V magnitude	3.852
    * K magnitude	3.713
    * Spectral Type	A2V
    * UD		0.574mas +- 0.04
    * Source		ASPRO (Bonneau, D.; Clausse, J.; Delfosse, X. et al. SearchCal: a
 Virtual Observatory tool for searching calibrators in optical long baseline interferometry
 I: The bright object case, A&A, 2006, 4469)

    *  Name		HD 86440
    * Coordinates	09:56:51.742, -54:34:04.000
    * V magnitude	3.50
    * K magnitude	3.729
    * Spectral Type	B5Ib
    * UD		0.439mas +- 0.03
    * Source		ASPRO (Bonneau, D.; Clausse, J.; Delfosse, X. et al. SearchCal: a
 Virtual Observatory tool for searching calibrators in optical long baseline interferometry
 I: The bright object case, A&A, 2006, 4469)

ToO Information

```
Nothing here
```

ToO Activators List

```
Nothing here
```

Is this a Pre-imaging run ?

```
false
```

Pre-imaging Requirements

```
Nothing here
```

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 ?

Do you use the same DIT for pairs of science target and associated calibrator?

Are the magnitudes of science target and calibrator within +/- 1 mag ?

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 15:40:21 2009
If you have comments, please contact usd-help@eso.org