README web version of /home/usg/OPS/MTS/readme_xml/readme_82004800

Principal Investigator Email Address

```
mkasper@eso.org
```

Estimated Total Execution Time (hours, including overheads)

```
13
```

General Description

L' imaging of nearby and young A/F stars using dithering.

Most stars are bright of the order L=5-7. A couple (Beta Pic: L=3.5, Fomalhaut:
 L~1) exceed the limit for broad band imaging, so the NB4.05 filter was chosen instead
 of L'. Even then Fomalhaut will saturate the detector which can be tolerated from
 the science point of view (see waiver request).

The FoV box in the FC is meant to only indicate the size of the FoV, the star should
 nevertheless be centered.

NOTE: hip 13027 (OB 331083) is a 3.5" binary. Please choose the brighter star for
 the WFS and execute the OB as it is.

Waiver Requests

Fomalhaut detector saturation waiver has been requested (082.C-0048A.01.WAV).
 The object has an apparent magnitude of L~1 exceeding the brightness limit (mag>3)
 in ND4.05 by 2 magnitudes. Since the science is not affected by saturation of the
 PSF core, it should be observed without ND filters.

This waiver has been accepted under the condition that I give back 5 minutes of
 science time for this OB which has been done (total execution time is 12:45:27 hours
 while 13 hours were approved).

After completion of this OB, the detector should be repeatedly read-out for 5 minutes
 to clear potential remnants.

Critical Observing Condition Constraints

```
none
```

Time-Critical Aspects

```
none
```

Special Execution Requirements

```
none
```

Special Calibration Information

```
none
```

ToO Information

```
na
```

ToO Activators List

```
na
```

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
```

If you have PSF reference star OBs, do the names of those OBs begin with PSF_ ?

```
N/A
```

If there are Finding Charts attached to your OBs, is the field-of-view of at least one of these charts 2' x 2' (with clearly labelled field orientation) ?

Have you clearly marked and labelled your wavefront reference objects R1, R2, R3, ... (as specified in the NAOS Preparation Software) on your Finding Charts ?

Have you specified the magnitude of the brightest object in the field-of-view for each OB ?

Are there objects in any of your fields (including standard stars) which are brighter than the limits specified in the User Manual and on NACO web Pages ?

If the previous answer is yes, have you given a list of OBs and a justification for the brightness limit violation in the general description field ?

Last creation of page: Tue Oct 6 15:40:26 2009
If you have comments, please contact usd-help@eso.org