Usage

openup [logid=] [nocloud]

This shell script prepares the telescope and observatory for taking observations.

If the observatory is already open it returns immediately without doing anything. If it fails for any reason it returns a non-zero exit code.

In particular it:

• checks the cloud sensor and opens if it is clear enough
• opens the slit
• checks that the dome, and secondary are homed
• opens the mirror
• turns on the preload

NOTE: If the cloud sensor says that it is too cloudy to observe and the slit is already open, the program will close the observatory using the closedown script (Section 5.1.2. This behavior may seem bizarre to some.

Also be aware that this script does not turn on the tracking.

When nocloud flag is used then the script ignores the cloud sensor and opens regardless. It still obeys all other weather limits.