README web version of /home/usg/OPS/MTS/readme_xml/readme_77503600

Principal Investigator Email Address

```
kueppers@mps.mpg.de
```

Estimated Total Execution Time (hours, including overheads)

```
3 hours
```

General Description

A series of six fields is exposed to search for most (59 out of 65) fragments
 of comet 
73P/Schwassmann-Wachmann 3. Pointing is expected to be blind because most ot the
 fragments may or may not exist anymore. Nevertheless, differential tracking on the
 comet velocity is essential to
optimize sensitivity.  
On all fields 3 long exposures (350 - 400 s) are submitted. Additionally, exposures
 with 20 s
exposure time are added for two fields to get non-saturated images of the two brightest
 fragments.

Coordinates of the moving targets in the observing blocks are for 15 Sept. 7 UT
 which for this
DDT observation makes more sense than the standard at 1 July.

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

Moon needs to be below horizon to minimize sky brightness.
Sky needs to be clear, photometric conditions are not required.
Seeing should not be below 1 arcsec.

Time-Critical Aspects

Observations need to be performed by end of September because afterwards
 surviving fragments will
become too faint.

Special Execution Requirements

```
None.
```

Special Calibration Information

Flat fields (sky flats and dome flats) are requested for the non-standard
 filter in use. We have
no preference if those daytime or twilight observations are performed before or
 after the 
observations.
No standard star field is requested because relative calibration is sufficient for
 the purpose
of this project.

ToO Information

```
N/A
```

ToO Activators List

```
N/A
```

Is this a Pre-imaging run ?

```
false
```

Pre-imaging Requirements

```
N/A
```

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 ?

```
N/A
```

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 ?

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 ?

```
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 set 'New Preset' flag in all acquisition templates to 'True'?

Have all your submitted OBs the same filter for the acquisition template and for the first science template?

Did you combine calibration templates with science templates for any OB?

Did you combine imaging and spectroscopic templates for any OB?

Did you submit any Focus template?

Last creation of page: Tue Oct 6 15:40:14 2009
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