README web version of /home/usg/OPS/MTS/readme_xml/readme_80068700

Principal Investigator Email Address

```
GGiardino@rssd.esa.int
```

Estimated Total Execution Time (hours, including overheads)

```
12
```

General Description

Intermediate spectroscopic observation of pre-main sequence stars
(PMS) in NGC1850. PMS have V spanning from 20 to 21. The immediate
goal of the proposal is to measure Halpha emission from these stars.

Target selection is based on WFPC2 image. To achieve target S/N of ~
10 per pix at V=21, we need 12 exposures of the same field (same
FLAMES configuration). Thus all 12 OBs are identical. For each OB
there are two finding charts: the first, at lower resolution (red
DSS), shows guide star + FACBs, the second, at higher resolution
(WFPC2 band f569w) shows the targets. The WFPC2 image and coordinate
system were registered against the UCAC2 catalogues, from where FACBs
and Guide Star were also selected.

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

Thin cirrus is fine, but seeing must absolutely not be worse than 0.8".
 Moon should no be more than 5-6 days from new moon.

Time-Critical Aspects

```
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

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Pre-imaging sources not listed above

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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 ?

```
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 ?

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 specify in your OBs the hour angle range for which your Target Setup files are valid ?

Did you specify in your OBs the magnitudes of FACBs and Guide Star for all your fields ?

Are the FACBs and Guide Star in the brightness ranges specified in the FLAMES manual ?

Did you enter the expected signal to noise in your OBs ?

Last creation of page: Tue Oct 6 15:40:22 2009
If you have comments, please contact usd-help@eso.org