README web version of /home/usg/OPS/MTS/readme_xml/readme_81028900

Principal Investigator Email Address

```
Paul.Crowther@sheffield.ac.uk
```

Estimated Total Execution Time (hours, including overheads)

```
2.7
```

General Description

This programme seeks narrow-band imaging of NGC3621 using the HeII and
 adjacent continuum interference filters to search for the presence of Wolf-Rayet
 stars (strong HeII emission line sources), plus supporting broad-band (v-High and
 b-High) and H-alpha (on and off) imaging which will aid identification of sources
 for follow-up MOS spectroscopy plus establish O-star contents.

We will be able to identifiy WR candidates from the NGC3621_offHeII_HeII# OB's which
 havr the highest priority, but would need the NGC3621_Ha_BV OB for calibration purposes.

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

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none
```

Time-Critical Aspects

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none
```

Special Execution Requirements

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Special Calibration Information

We request a spectrophotometric standard to be observed with HeII, HeII/6500,
 H-alpha and H-alpha/4500 filters, as appropriate, during twilight, to enable calibration
 (in addition to the standard v-HIGH and b-HIGH filter sets).

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 ?

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 ?

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?

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 ?

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 ?

Last creation of page: Tue Oct 6 15:40:23 2009
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