README web version of /home/usg/OPS/MTS/readme_xml/readme_81007300

Principal Investigator Email Address

```
A.J.Norton@open.ac.uk
```

Estimated Total Execution Time (hours, including overheads)

```
2h
```

General Description

This programme (Part A of 081.D-0073) is to obtain infrared classification
 spectra of the counterparts to two eclipsing X-ray pulsars: OAO1657-415 and EXO1733-363.
 Both objects are likely to be Early type giant stars (late O / early B) and both
 have magnitudes Ks~10.5. We require K band spectra of each, with two central wavelength
 positions for each target, namely 2.06 micron & 2.15 micron. OAO1657 is in the
 first OB, EXO1722 is in the second OB.

Part B of this programme (see other readme file) is designed to subsequently obtain
 18 further spectra of one of these targets at random orbital phases in order to
 obtain phase resolved radial velocity measurements of the star.

Please therefore carry out Part A of this programme before Part B, so enabling us
 to analyse these spectra rapidly, so that we can adjust the wavelength range of
 the Part B observations if necessary.

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

```
none
```

Time-Critical Aspects

```
none
```

Special Execution Requirements

Please carry out this programme (Part A) before the related Part B of
 the programme.

Special Calibration Information

```
none
```

ToO Information

```
none
```

ToO Activators List

```
none
```

Is this a Pre-imaging run ?

```
false
```

Pre-imaging Requirements

```
none
```

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 ?

```
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
```

If you submitted OBs for standard stars, did you use the provided StandardStar templates ?

```
N/A
```

If you are using a specific offset pattern or position angle, did you check carefully the definition in the manual ?

```
N/A
```

If you are doing spectroscopy, did you draw the slit on the Finding Charts ?

Did you enter the magnitude of the brightest star in the field-of-view in the 'Instrument Comments' field of each OB ?

If you use the MoveToPixel acquisition, have you given clear instructions on the FC and in the OB comment section as to how the field should be centered ?

```
N/A
```

Last creation of page: Tue Oct 6 15:40:23 2009
If you have comments, please contact usd-help@eso.org