README web version of /home/usg/OPS/MTS/readme_xml/readme_75058200

Principal Investigator Email Address

```
davies@mpe.mpg.de
```

Estimated Total Execution Time (hours, including overheads)

```
23.5
```

General Description

This program is part of an ongoing deep K-band imaging survey with NACO,
 for which we have deliberately chosen target fields that are centered on bright
 blue stars well suited for wavefront sensing. 

The aim is to observed as deep as possible in each field (we can reach a little
 fainter than Ks~23 with 60min on-source integration) and then combine the discrete
 fields - which between them cover more than 30sq. arcmin at a spatial resolution
 of 0.1arcsec - to probe the sizes, morphologies (e.g. disk vs spheroidal) and magnitudes
 of faint galaxies as a function of redshift (redshifts are obtained from accompanying
 VIMOS programs). To achieve these aims, we require long exposures. As a result,
 the bright star in the centre (typical magnitude Ks~10-11) will saturate. This has
 been acceptable for all previous observations.

Analysis of the first fields and also a few calibration fields has enabled us to
 develop a method of accurately accounting for the anisoplanatic PSF in each field,
 even though there are very few point sources present.

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

```
None
```

Time-Critical Aspects

```
None
```

Special Execution Requirements

Each Field has 2 OBs (eg SBSF19-1 & SBSF19-2). If only one of each
 pair has been observed, please observe the second (if possible) before starting
 a new field. Even better would be to execute the second OB of each pair immediately
 after the first.

At the start and end of the OB, there is a set of short integrations of the bright
 star using a narrow-band filter. It is important that the star is not saturated
 in these exposures, so please check the DIT is okay and  - although it should not
 be necessary - adjust it if required.

The science exposures have a DIT of 30sec, and so the bright star is expected to
 staurate. Please do not adjust this DIT since it is set to maximise the depth of
 the observation, which is the aim of the programme.

Special Calibration Information

```
No special calibrations required.
```

ToO Information

---(Empty)---

ToO Activators List

---(Empty)---

Is this a Pre-imaging run ?

```
false
```

Pre-imaging Requirements

---(Empty)---

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 ?

```
N/A
```

Last creation of page: Tue Oct 6 15:40:07 2009
If you have comments, please contact usd-help@eso.org