D Reducing data at the Joint Astronomy Centre

This section describes the location of SCUBA data at the Joint Astronomy Centre.

D.1 During Observing

At the JCMT the SCUBA data is written to a unix disk upon completion of each observation. Both the demodulated and reduced data are written to a directory in /jcmtarchive. Usually the directory name is constructed from the UT date in YYYYMMDD format. i.e. on June 27th 1997 the directory will be called 19970627. The data should not be copied into the working directory (primarily to save disk space) and can be accessed by setting $datadir:

This can be automated by using the scusetenv command:

D.2 Hilo

SCUBA data is transferred to Hilo every afternoon. This data is stored in /scuba/ in semester directories (eg /scuba/m99a for data taken during semester M99A) containing a UT directory and an ro/UT directory. Data can be accessed by setting $datadir:

or

Note that, unlike at the summit, the demodulated and reduced data are in separate directories. The directories containing the demodulated data also contain index and log files which summarise the observations.

This can be automated by using the scusetenv command: