README web version of /home/usg/OPS/MTS/readme_xml/readme_78504600

Principal Investigator Email Address

```
phil@obs-besancon.fr
```

Estimated Total Execution Time (hours, including overheads)

```
1 hour
```

General Description

These observations consist in monitoring the cometary activity level of
the Centaur Echeclus. The object itself is a 21 magnitude Centaur but it 
presented a coma with an overall brightness equal to magnitude 14 at the
beginning of 2006. I have no idea at all of the present activity level,
consequently the images can reveal either a punctual object or a clearly
comet like target. 

The exposure times are short (125 s ) because of the apparent motion of the 
target (from about 2.4 up to 9 arcsec/hour, see ephemeris file). The tracking 
must be done as usually, on the stars.

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

```
CLR
seeing<=1.4arcsec
Airmass<=2
```

Time-Critical Aspects

Because of the relative position of the moon the target can be observed
(second part of the night) in the period February 13 to 27 (noon to noon)
or March 14 to 27.

Special Execution Requirements

---(Empty)---

Special Calibration Information

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ToO Information

---(Empty)---

ToO Activators List

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Is this a Pre-imaging run ?

```
false
```

Pre-imaging Requirements

I have selected a pixel corresponding to the middle of CCD 46 to
center the target (coordinates 3200, 2048). Please, check carefully that the target
 
does not appear in the gap or close to the gap (past negative experience with FORS
 2...).

Source(s) of Pre-imaging

---(Empty)---

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 ?

```
N/A
```

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 ?

```
N/A
```

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
```

Last creation of page: Tue Oct 6 15:40:17 2009
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