README web version of /home/usg/OPS/MTS/readme_xml/readme_79501400

Principal Investigator Email Address

```
Olivier.Chesneau@obs-azur.fr
```

Estimated Total Execution Time (hours, including overheads)

```
3h
```

General Description

MIDI observations of the nova V1280 Sco about 2.5 months after discovery.

The nova has been observed in February and March (DDT 278.D-5053) with the ATs but
 is now too faint to be acquired (V~13.5) and there is no guide star in the vicinity.

The N band flux should still be well above 5Jy and the extension of the source is
 estimated to 20-30mas.

There should be no particular difficulty to acquire and record fringes from the
 source in service mode.

The calibrator is an interferometric and spectrophotometric calibrator ('Cohen calibrator').
If this calibrator is not satisfactory, there is a 'normal' one, closer to the source,
 HD152334 (OBs also prepared for it). 

Note that in case the baseline UT3-UT4 is not available fast enough, the UT2-UT3
 baseline is an alternative.

Last point: at the time of observations, the dust may already begin to be destroyed
 by the hot inner source (the so-called 'coronal' phase).
If time and flux allows it, a photometry of the source and the calibrator with the
 Grism would allow to decide whether this step has begun or not.

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

```
None
```

Time-Critical Aspects

```
None
```

Special Execution Requirements

```
None
```

Special Calibration Information

```
None
```

ToO Information

```
None
```

ToO Activators List

```
None
```

Is this a Pre-imaging run ?

```
false
```

Pre-imaging Requirements

```
None
```

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 ?

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
```

Last creation of page: Tue Oct 6 15:40:20 2009
If you have comments, please contact usd-help@eso.org