README web version of /home/usg/OPS/MTS/readme_xml/readme_82071700

Principal Investigator Email Address

```
mwest@eso.org
```

Estimated Total Execution Time (hours, including overheads)

```
4.7
```

General Description

This is a straightforward imaging programme with HAWK-I using the Y, J
 and K filters.  The goal of this programme is to detect faint galaxies that belong
 to a candidate cluster of galaxies associated with a group of four quasars at redshift
 2.0.  Candidate cluster galaxies will be selected on the basis of their Y-J/J-K
 colours.

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

To achieve the science goals of this programme we require seeing of 0.8
 arcsec or better for all filters.

Position angle on the sky is chosen to be 40 degrees, to allow all four quasars
 to fit within the HAWK-I field (the four quasars are in a North-South line with
 a distance of ~ 8 arcmin between the two most widely separated of the quasars).

Photometric conditions are required.

We request that the observations be done at an airmass less than 2.0.

As suggested in the HAWK-I manual, we request that no observations be done closer
 than 30 degrees to the Moon to avoid problems related to the telescope guiding/active
 optics systems.

Time-Critical Aspects

There are no time-critical aspects of these observations.

Special Execution Requirements

```
No special execution requirements.
```

Special Calibration Information

```
No special calibration requirements.
```

ToO Information

```
This is not a ToO programme.
```

ToO Activators List

```
This is not a ToO programme.
```

Is this a Pre-imaging run ?

```
false
```

Pre-imaging Requirements

```
No pre-imaging is required.
```

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 ?

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 15:40:27 2009
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