README web version of /home/usg/OPS/MTS/readme_xml/readme_78028201

Principal Investigator Email Address

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dfedele@eso.org
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Estimated Total Execution Time (hours, including overheads)

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14
```

General Description

The aim of the project is to trace the evolution of the mass accretion
 rate in pre-main-sequence stars as a function of the age of the system. This can
 be done with high resolution spectroscopy of a large number of cluster members to
 study their Halpha emission. 
The project consists of MOS observations of 7 young stellar clusters. Pre-imaging
 observations were done in run 078.C-0282(A). Using VMMPS, for each cluster 3 masks
 were created using the pre-imaging data. The slits were positioned in order to cover
 the wavelength range 5800-6800 Angstroms in high resolution (grism HR-Orange).

Waiver Requests

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No Waiver Request was submitted
```

Critical Observing Condition Constraints

No critical observing condition required

Time-Critical Aspects

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No time-critical aspects needed
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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 ?

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false
```

Pre-imaging Requirements

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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 ?

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N/A
```

Have you included OBs for any calibrations that you need but which are not part of the Calibration Plan ?

If you are observing Moving Targets, have you attached suitable ephemeris files to your OBs?

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N/A
```

If you have preferences which OBs should be executed first, did you make use of the User Priority field in the OBs ?

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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 ?

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N/A
```

Did you specify suitable guide stars for all your OBs using Guidecam ?

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N/A
```

Did you check that the chosen guide stars are suitable for all the offset positions and that they do not produce unacceptable vignetting of the field of view ?

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N/A
```

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