Changes in Version 1.1

General changes

• Output files are now as small as possible. In version 1.0-0 output files were the same size as the input file.

• Observation numbers, rather than the full filename, can now be given to tasks that process the raw demodulated data (reduce_switch, skydip, sdip, scuquick). This feature requires the SCUBA_PREFIX environment variable.

• All tasks now supply a default output filename. The form of this filename is governed by the SCUBA_SUFFIX environment variable.

• The MAP_X, MAP_Y and LOCAL_COORDS observing parameters are now supported.

New tasks

• A despiking task has been added for JIGGLE/MAP data. (despike)

• An experimental despiking task is available for SCAN/MAP data (despike2).

• The data clipping functionality has been moved from remsky to a stand-alone task (scuclip).

• There is now a task for extracting flatfield information from data files. (extract_flat).

• Data suffering from the `data shift' problem (mainly Semester 97a) can be fixed with the scushift task.

• The experimental task, scan_rlb, can be used to remove linear baselines from SCAN/MAP data.

• The addition of some interactive despiking and data inspection tools (dspbol, pltbol, and rlinplot).

Changes to existing tasks

• skysum is now officially released with documentation.

• SKYDIP data can now be processed with reduce_switch and change_quality. This allows bad skydip points to be removed prior to fitting with skydip. This required changes to reduce_switch (cold load temperatures are requested) and skydip.

• reduce_switch now creates axis information (instead of extinction).

• For SCAN/MAP data scuover now displays the position of the array at the start of a scan

• skydip now reads default values for ETA_TEL from the observation header and allows the T_HOT value to be modified. Additionally, the fit results are stored as output parameters.

• extinction now reads default values for FIRST_TAU from the observation header and supplies a default for SECOND_TAU (the value accepted for FIRST_TAU.)

• remsky now adds the mean sky level back onto the data in order to minimise the removal of flux from the image.

• remsky no longer despikes the data. This facility is now provided by the scuclip/despike tasks.

• Bolometer groups (e.g. ring 1, ring 2, all) can now be used to specify bolometer lists for remsky.

• The size of the output map can now be specified in rebin.

• The filenaming system used by scuquick has been modified slightly so that it conforms with the SCUBA_SUFFIX=long mode. scuquick now also recognizes SKYDIPs.