Quickdata Quikstop-15 Dokumentacja Pobierz pdf (Strona 20)

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5. Normal procedures

5.1. Observing Checklist

Before starting your observations make sure you have

• Selected a good pointing source. Good means:

o As close to your target as possible. Use our SiO maser database

with the angular distance display.

o As bright as possible: At 3mm in Zoom or Broadband mode you’d

like a source brighter than 1.5K to reliably point, in Fastmap mode

2K or brighter.

• Plan to update the pointing every 1.5 hours if not moving away to other

sources.

• Check the attenuation levels (Gated Total Power, or GTP, displayed in

TOAD)

• If observing at 3mm, include a Tsys measurement in your schedule in 30

minute intervals (the online schedule maker tools include that for you)

• Consider observing one of the standard sources once per day:

o M17SW

o Orion KL

o L1527

5.2. Creating your schedule files

The telescope control software (TCS) requires schedule files that tell the

telescope what to do. In a schedule file, you must define (and therefore know):

• Project number

• Your initials

• Receiver setup. This includes

o Which MOPS configuration to use

o Center frequency

o If using zoom configuration, the zoom window numbers. Refer to

the next chapter on using mops_vis to find the appropriate Band

and Zoom window numbers, or use the OTF schedule maker

version 6.

Optionally, you can define:

• Source and offset positions.

You can also create your own source catalogues if you have a large number of

objects to observe. Refer to the TCS manual accessible online from the main

Mopra website http://www.narrabri.atnf.csiro.au/mopra/

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Quickdata Quikstop-15 Dokumentacja Strona 20