README web version of /home/usg/OPS/MTS/readme_xml/readme_81092700

Principal Investigator Email Address

```
Myriam.Benisty@obs.ujf-grenoble.fr
```

Estimated Total Execution Time (hours, including overheads)

```
6
```

General Description

The goal of the program is to spatially resolve the closest AUs of HAeBe
 stars where planets are supposed to form. We propose to study the geometry of the
 inner rim of the disk surrounding these stars by obtaining 4 calibrated points with
 2 ATs configurations (E0-GO-H0 and D0-H0-G1). (2 by configuration).
In that case, we will constrain the overall geometry with such different visibility
 and closure phase measurements.
We will be able to disentangle between successful models such as the puffed up inner
 rim disk model or the classical accretion disk model for the circumstellar environment
 of this star.

These observations are at the limit of FINITO official performances, but could maybe
 be tried with it. In this case, we prefer FINITO to be used in Group Tracking mode
 to ensure a stable transfer function. 

April 26 2009: the OB was changed to be executed on the D0-H0-G1 triplet (instead
 of E0-G0-H0) in order to increase its chances to be executed in P83.

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

The target won't be observable from august to the end of the period.

Time-Critical Aspects

The same OBs have been duplicated so that they could be performed twice
 with different telescopes triangle.

Special Execution Requirements

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Special Calibration Information

As the calibrator star is not in CalVin:
HD103125 of 0.9+-0.06mas diameter

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 ?

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 15:40:25 2009
If you have comments, please contact usd-help@eso.org