README web version of /home/usg/OPS/MTS/readme_xml/readme_77001500

Principal Investigator Email Address

```
kani@utu.fi
```

Estimated Total Execution Time (hours, including overheads)

```
1.0
```

General Description

The goal of the observations is to obtain a LSS spectrum of the BL Lac
 object OJ 287.
The selected grism will cover the H_alpha line of the source (we are monitoring
 this
line on a long-term basis at the VLT). Since the line is very weak relative to the
continuum, we need to calibrate the continuum shape accurately. For this purpose
 we
also obtain a LSS spectrum of the spectrophotometric standard GD 108.

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

OJ 287 lines close to the ecliptic. The observations should not be made
 when
the moon is closer than 30 deg. to the source.

Time-Critical Aspects

```
None
```

Special Execution Requirements

---(Empty)---

Special Calibration Information

The spectrophotometric standard GD 108 needs to be observed close in time
 to OJ 287
to obtain the best possible calibration of the continuum shape.

ToO Information

---(Empty)---

ToO Activators List

---(Empty)---

Is this a Pre-imaging run ?

```
false
```

Pre-imaging Requirements

---(Empty)---

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 ?

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?

```
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
```

If you have prepared your finding charts with tools other than FIMS, do they comply with the specifications on the FORS2 Phase 2 web page ?

```
N/A
```

Last creation of page: Tue Oct 6 15:40:11 2009
If you have comments, please contact usd-help@eso.org