README web version of /home/usg/OPS/MTS/readme_xml/readme_82506400

Principal Investigator Email Address

```
p.casella@uva.nl
```

Estimated Total Execution Time (hours, including overheads)

```
1
```

General Description

Fast infrared timing of GX 339-4. This OB is for the first 1 hour, out
 of the approved 6 hours. The remaining 5 hours will be scheduled in the following
 weeks, depending on the source behaviour. 

The finding chart shows the ISAAC window, centered on the actual pointing coordinate
 (slightly offset respect to the target gx 339).

Waiver Requests

Waiver was approved to allow rectangular windows.

Critical Observing Condition Constraints

```
None.
```

Time-Critical Aspects

Simultaneous X-ray data are planned.  By agreement, we found the best
 time slot, and fixed the X-ray schedule.

The first RXTE satellite simultaneous observation starts on April 3rd at 07:42UT
 and finishes at 08:35UT

2009 April 03rd  07:42 - 08:35

We will communicate to the Night Astronomer any change to the RXTE schedule.

(The schedule for the remaining approved time will be communicated in the future,
 depending on the source behaviour.)

Special Execution Requirements

The rectangular window should be centered on the specified coordinates,
 i.e., 4 arcsec SE from the nominal target GX339 (star 1 in the FC)
The window should be oriented as indicated in the FC (i.e. 6 degrees NE).

Special Calibration Information

---(Empty)---

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 ?

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 15:40:28 2009
If you have comments, please contact usd-help@eso.org