README web version of /home/usg/OPS/MTS/readme_xml/readme_76029601

Principal Investigator Email Address

```
jaffe@strw.leidenuniv.nl
```

Estimated Total Execution Time (hours, including overheads)

```
1
```

General Description

c.f. 76C-296(A) We want spectrum of H_2/HII knot in Helix planetary nebula
 and line of emission to North East.  Knot is shown on finding chart which is HST
 H-alpha image.  Image shows 2" slit position.  PA of slit should be 41 deg (E of
 N); is this same as "Rotator offset angle" or negative? Knot should be positioned
 in middle of Southern chip, i.e. pixel 1024.  PN star is near southern end of slit.
  Probably best to avoid getting star in slit. We want medium res. (Gr#8) spectrum
 from Hbeta->Halpha->SII 6731. Spectrum 3 exposures (cosmic rays) + 2 exposure
 OFF/SKY 7' to north (because whole area is full of emission).  Note exposure estimator
 did not include time for Sky exposures.  I have guessed total time by first including
 them in ON exposure and then moving to 2nd template.  Offset for SKY is large; if
 guiding is lost this is OK.

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

```
none
```

Time-Critical Aspects

```
none
```

Special Execution Requirements

```
none
```

Special Calibration Information

```
none
```

ToO Information

```
na
```

ToO Activators List

```
na
```

Is this a Pre-imaging run ?

```
false
```

Pre-imaging Requirements

```
na
```

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 ?

```
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 15:40:09 2009
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