Release Notes

V4.0

• Support for UIST in all observation modes.

• Support for INGRID in all observation modes.

• Support for ISAAC in imaging mode, and preliminary support for spectroscopy mode.

• New document, SUN/246, describing integral field spectroscopy reduction and recipes.

• New ORAC_KEEP environment variable to retain intermediate frames.

• Spectroscopy:
  • Widened optimal extraction windows for better profile fitting.

  • Flux calibration for I-band.

• Imaging:
  • Modification of EXTRACTOR object-detection parameters to obtain a flatter, more accurate flat-fielded mosaic.

  • Offset patterns need not be centered at centre of the array.

  • Four new recipes including NOD_SKY_FLAT_THERMAL recipe for reduction of thermal data using sky observations for flat-fielding.

  • REDUCE_DARK supports variance creation and propagation by default.

  • Expanded SUN/232 with more description of the primitives, and information for programmers wishing to adapt the recipes.

• SCUBA:
  • CSO Tau fits up-to-date to January 2003 (when the tau meter broke).

  • Flux Conversion Factors verified up to March 2003.

  • More robust error handling for poor data.

V3.1

• Support for AAT IRIS2 data

• Spectroscopy:
  • Extracts "sky-arcs" to enable wavelength calibration of Michelle data.

  • Now handles offset patterns that don't originate at (0,0).

  • Peak-up routines for Michelle.

  • Single beam polarimetry now much more robust.

  • Masking of off-slit areas of image improved.

  • Better bad pixel detection in flat fields.

• Imaging:
  • Addition of NOD_CHOP_FAINT (faint mid-IR) and NOD_CHOP_SCAN (scan pattern mid-IR) recipes.

  • Addition of ADDWCS (adds WCS to headers) recipe.

V3.0

• Support for Michelle data.

• Support for multi-mode instruments, such as Michelle and UIST.

• Three Michelle recipes for nodded and chopped data (vanilla, photometry and moving target). New NQ standards file.

• Easy to switch on variance creation and propagation; calculates correct data variance for UKIRT IR imagers.

• Faster object masking using EXTRACTOR instead of PISA.

• Better registration of sparse fields using astrometry.

• Tidier output for easier reading. Added content to messages.

• Comments in calibration rules files.

• SCUBA: improvements in calibration of SCUBA data (both for flux conversion factors and extinction correction using -calib tausys=csofit).

• Use of internal headers and directory reorganisation, permitting generic-named recipes and primitives, and optimising code use; and easier to add new instruments.

V2.1

• New GUI (xoracdr) to simplify use of the pipeline.

• Enhanced CGS4 and imaging recipes.

V2.0

• Support for CGS4

• SCUBA: Jiggle map calibration

• IR Imaging: Polarimetry support plus recipe generalization.

V1.0

• First release to Starlink. Includes SCUBA and imaging (UFTI FITS and IRCAM) recipes.