Supplementary Documentation

1. User Documents

• ELLINT (pdf version)
  Integration of image data in ellipses (see also: ellint.dc1)
• The moments analysis used to derive formulas to calculate initial estimates of ellipse parameters (GAUFIT2D, ANTPAT) is finally LaTeXed and made available. Not all text is translated to english yet, but it is still a useful document. Document is available in PostScript and in PDF
• INSPECTOR v2.3 (PS) or INSPECTOR v2.3 (PDF)
  Compares radial HI velocities, obtained from fitted `tilted ring' circular velocities, with velocities in data slices (see also: inspector.dc1)
• XGAUPROF
  A GIPSY program to fit parameters of a Gauss function, the Gauss-Hermite series or a Voigt line-shape to data from GIPSY sets or ASCII files (see also: xgauprof.dc1) Versions: xgauprof.pdf, xgauprof.ps

• Example use of applications related to velocity fields
• Hermes User's Guide
• PGPLOT (marker) symbols
• Sky Projections used in GIPSY

• GIPSY User Guide
  Not up-to-date (1992) and incomplete, but still useful.

• GIPSY MEMO #1
  How to specify GDS sets and subsets in the light of class 1 and class 2 programs.

• REDLINE
  Tentative guideline for an interactive processing of HI line data (principally extragalactic) - Old document (1985) but parts are still useful.

• GIPSY's Parameter Interface (PDF) (HTML version here)
  
• Parameter Interface "mind map"
  (these documents were contributed to the Opticon N3.6 meeting in March 2007)

• Sheltran Reference Manual
• GIPSY Programmers Guide
  A rather old and incomplete draft, but many parts are still useful.

3. Articles

• A Multi-tasking Operating System for Interactive Data Reduction (Workshop on IUE Data Reduction, 1980)
• The Groningen Image Processing System (International Workshop on Data Analysis in Astronomy, 1985)
• The Groningen Image Processing SYstem GIPSY (ADASS I, 1992)
• The Evolution of GIPSY, or the Survival of an Image Processing System (ADASS X, 2001)

• Hermes
  Historical document (1978) proposing a master task to run application programs on the PDP-11/70. GIPSY's current Hermes is derived from this.
• The new GIPSY data structure for images
  Historical document (1985) in which the ideas which led to GIPSY's current data structure were first presented.
• Gipsy Data Subsystem
  Historical document (1987) describing the then proposed data structure which was first implemented under VMS and later moved to Unix. GIPSY's current data structure still follows the ideas described in this document rather closely.

• Pixels, Grids & World Coordinates