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Other Useful Observing Words

Although observe is the only data-collection word you need to learn, there are a few others that you may find useful.

Doing a Sequence of Observations

We saw above that we can use htmlref moressec:mores n to do n more observations just like the last one. But what if you know exactly what you want to do in the first place and would just like to start a series of 20 bias frames running? There are specialized tasks that will do a series of observations of each image type, namely:

Each of these commands will query for the number of exposures, exposure time, and title. Note that mores will repeat more exposures of sequences begun using any of the above commands.

Also note that if you change the exposure time during a series of integrations, this change will propagate to subsequent exposures of the series; this is not true of changing the title, at present, however. Stopping or Aborting an exposure will terminate the series.

Running a Test Exposure Using test

In addition, it is possible to do a test exposure that will always overwrite an image named test by typing test.


next previous contents
Next: The Parameters Files Previous: How to Get Help
jbarnes@noao.edu
Tue Feb 14 07:48:00 MST 1995