README web version of /home/usg/OPS/MTS/readme_xml/readme_77060600

Principal Investigator Email Address

```
leao@obs-nice.fr
```

Estimated Total Execution Time (hours, including overheads)

```
5.0
```

General Description

This is a NACO program of one Science target (RY Sgr)
and one Calibration star (HR 7188)
with 3x2 OBs in total.

We want to collect images of RY Sgr
with three filters: Ks, L' and M'.
The images must have very high dynamic ranges
and photometric calibration will be done,
in order to derive high-contrasted colour-maps.
The best as possible sky conditions are then needed.

The calibration star will be used as
both PSF and Photometric Calibration source.

The OBs will collect images with two
different rotation angles
(0 and 55 degrees, by the instrument rotator)
in order to better identify artefacts.

Target magnitudes:
RY Sgr: K~5, L~4, M~3 mag
HR 7188: K,L,M=~4.8 mag
Note: these targets are the brightest sources of their fields.

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

1) Clear sky or better is needed (preference for photometric sky).

2) Preference for seeing less than 0.8 arcsec (see note).

3) Preference for airmass less than 1.2 (see note).

NOTE: in case of difficult to follow the seeing and airmass requests (items 2 and
 3),
please consider the limits: seeing=1.2 arcsec and airmass=1.5.
At the last opportunity of executing the OBs,
please consider the limits: seeing=1.5 arcsec and airmass=2.

Time-Critical Aspects

```
No Time-Critical Aspects required
```

Special Execution Requirements

Please, execute the pair of OBs "Science + PSF" at close times for each
 band.
We identified the OBs with their bands (K, L, M) to make this easer.

We also ask to consider the following priorities for the bands:
First: L-band, Second: K-band, Third: M-band.

Special Calibration Information

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No Special Calibration Information.
```

ToO Information

```
Not a ToO.
```

ToO Activators List

```
Not a ToO.
```

Is this a Pre-imaging run ?

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false
```

Pre-imaging Requirements

```
No Pre-imaging sources.
```

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 ?

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

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 ?

```
N/A
```

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

```
N/A
```

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 15:40:13 2009
If you have comments, please contact usd-help@eso.org