README web version of /home/usg/OPS/MTS/readme_xml/readme_83081900

Principal Investigator Email Address

```
rainer@iaa.es
```

Estimated Total Execution Time (hours, including overheads)

```
1
```

General Description

At about 1 pc projected distance from the supermassive black hole at the
 center of the Milky Way, Sagittarius A*, we have identi?ed a star that moves with
 a projected velocity of 420 km s?1 radially away from the black hole. This star
 may be the 
smoking gun for processes that create hypervelocity stars at the center of the Milky
 Way. The spectroscopic observations will serve  
to identify the type and radial velocity of this hypervelocity candidate star.

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

```
None.
```

Time-Critical Aspects

```
None.
```

Special Execution Requirements

A fairly large offset has to be done to acquire the sky because the Galactic
 center is an extremely crowded region.
The field for the sky observations (3"x 3" wth the 100 mas platescale) is indcated
 in finding chart 1.

Special Calibration Information

```
None.
```

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
```

Did you indicate the magnitude of the brightest object in the field in each SINFONI OB?

If you are using the AO: Did you indicate for every OB the magnitude of the guide star, and its distance to the target (if any)?

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?

Did you make really sure that none of your OBs ever saturates the detector?

If you are using the AO: did you enter the correct Strehl Ratio (on-axis, K-band) AND the seeing value in the constraint set?

Last creation of page: Tue Oct 6 15:40:30 2009
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