README web version of /home/usg/OPS/MTS/readme_xml/readme_80023113

Principal Investigator Email Address

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

Estimated Total Execution Time (hours, including overheads)

```
1.0
```

General Description

Multi-epoch VISIR+MIDI+AMBER observations of the carbon-rich Mira star
 R For.  This run represents the third epoch MIDI observations. The MIDI data, combined
 with VISIR data, will be used for deriving the physical properties of the dust formation
 zone and for better unterstanding the dust condensation sequence in carbon stars.
  The OBs in this run should be executed as close in time as possible to the other
 VISIR/MIDI runs
for the third epoch, i.e., 080.D0231(K), 080.D-0231(L), and 080.D-0231(M).  We specified
 two calibrators (gam Eri and bet Cet) to cover the LST range extending 30 minutes
 before and after the science target's LST range.  However, if both are observable,
 gam Eri is preferable, because it is the brighter one.  The science target R For
 is a variable with V = 9 - 12.5.  The V magnitude expected for this run is 12.

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

All OBs should be carried out in "variable, thin cirrus" or better conditions.

Time-Critical Aspects

The OBs should be carried out in February 2008.  However, if some OBs
 cannot be executed in this period, it is also acceptable to carry them out in later
 months.

Special Execution Requirements

```
None
```

Special Calibration Information

Name       : gam Eri 
Coordinates: 03:58:01.766 -13:30:30.655 (J2000) 
V mag      : 3.0 
N mag      : -1.47
Sp. type   : M1IIIb 
UD diameter: 8.51 +/ 0.09 mas 

Source     : CHARM2  
Name       : bet Cet 
Coordinates: 00:43:35.371 -17:59:11.777 (J2000) 
V mag      : 2.0 
N mag      : -0.82 
Sp. type   : K0III 
UD diameter: 5.18 +/ 0.06 mas
Source     : CHARM2

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 ?

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