README web version of /home/usg/OPS/MTS/readme_xml/readme_82011500

Principal Investigator Email Address

```
mosorio@iac.es
```

Estimated Total Execution Time (hours, including overheads)

```
08:01:16
```

General Description

Direct imaging of three HAWKI pointings in the sigma Orionis cluster using
 J, H, and CH4 bands.

The coordinates of each pointing have been selected according to the following criteria:
 
1) targets fall within the detectors (they do not fall in the detector gaps);
2) there are no very bright stars (H < 9.6 and J < 9.3 mag) within the field-of-view
 of HAWKI.

Strategy of the J, H and CH4 observations:
A) 29 images with integration time of 120 seconds (NDIT=12 and DIT=10s for H; NDIT=8
 and DIT=15s 
   for CH4). All 29 images must be jittered/offseted in a box of 12 arcsec.
B) 4 images with integration time of 90 seconds (NDIT=9 and DIT=10s) for J. All
 4 images must 
   be jittered/offseted in a box of 12 arcsec.

Waiver Requests

We submitted a waiver request to change two of the HAWKI pointings in
 the sigma Orionis 
cluster. Our request was accepted (email by Francesca Primas, 17 July 2008).

We also submitted a waiver request to allow OBs longer than 1 h. This was approved.

Critical Observing Condition Constraints

Seeing equal or better than 0.8 arcsec.
Thin cirrus (clear sky is even better).

Time-Critical Aspects

```
No photometric conditions are required.
```

Special Execution Requirements

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Special Calibration Information

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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
```

If you submitted OBs for standard stars, did you use the provided StandardStar templates ?

```
N/A
```

If you are using a specific offset pattern or position angle, did you check carefully the definition in the manual ?

```
N/A
```

Did you enter the magnitude of the brightest star in the field-of-view in the 'Instrument Comments' field of each OB ?

If you use the MoveToPixel acquisition, have you given clear instructions on the FC and in the OB comment section as to how the field should be centered ?

```
N/A
```

Last creation of page: Tue Oct 6 15:40:26 2009
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