README web version of /home/usg/OPS/MTS/readme_xml/readme_81088600

Principal Investigator Email Address

```
casella@science.uva.nl
```

Estimated Total Execution Time (hours, including overheads)

```
8
```

General Description

Main goal is to perform IR/X-ray simultaneous high-time resolution observations.
Calibration of fast atmospheric variability will be performed by using the bright
 star (K~13.5) 8" North from the target GX 17+2

Hence, the FoV has been centered such as to include both the target GX17+2 and the
 comparison star.

Waiver Requests

A waiver has been granted to execute 2-hours continuous observations.
 The waiver was requested on 13th February. Waiver was received on 15th February.

Critical Observing Condition Constraints

In case the observing conditions change during the night, we request to
 finish the OBs. This is because we will perform analysis in the frequency domain,
 integrating over the whole exposure. The lenght of the exposure and the simultaneity
 with X-ray observations are thus more important issues than the S/N in a single
 exposure and the angular resolution.

Time-Critical Aspects

OBs to be performed simultaneously with X-ray observations.

Preferred time-windows:

July 18th UT 03:00-05:00
July 19th UT 02:30-04:30
July 23rd UT 02:00-04:00
July 27th UT 02:00-04:00

The X-ray satellites RXTE and Swift will provide good coverage for these epochs.

Special Execution Requirements

The four nights (1 OB per night) should be roughly distributed within
 10 days. This condition is preferential, not binding.
In case the observing conditions change during the night, we request to finish the
 OB.

Special Calibration Information

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ToO Information

```
non TOO
```

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

---(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 ?

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
```

If you are doing spectroscopy, did you draw the slit on the Finding Charts ?

```
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 15:40:25 2009
If you have comments, please contact usd-help@eso.org