README web version of /home/usg/OPS/MTS/readme_xml/readme_83026900

Principal Investigator Email Address

```
madf@ast.cam.ac.uk
```

Estimated Total Execution Time (hours, including overheads)

```
15:56:28.00
```

General Description

Our aim is to measure radial velocities in the outer parts of the three
 ultrafaint dwarf spheroidals: Hercules, Leo IV and Leo V.  With these radial velocities
 we will investigate whether the outer parts of these remote objects are undergoing
 tidal disintegration and we hope to be able to determine the likely orbit of each
 dwarf and its velocity dispersion.  From these data we can place strong constraints
 on the dark matter content and orbital eccentricity of each dwarf.

We have selected a total of 8 fields around these objects and we want to look at
 each field twice.  Priority should be given to obtaining a first run of each field
 before repeating the fields.

We do not need standard stars or special calibrations - standard daytime calibrations
 with sky-line checks will be adequate.

We have not specified any guide stars; however we have checked the GSC2 catalog
 and there are plenty of candidate guide stars around each field.

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

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N/A
```

Time-Critical Aspects

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N/A
```

Special Execution Requirements

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Special Calibration Information

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ToO Information

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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 ?

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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 ?

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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 ?

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N/A
```

If you have prepared your finding charts with tools other than FIMS, do they comply with the specifications on the FORS1 Phase 2 web page ?

```
N/A
```

Last creation of page: Tue Oct 6 15:40:29 2009
If you have comments, please contact usd-help@eso.org