Projects / gcx


GCX provides a complete set of data-reduction functions for CCD photometry, with frame WCS fitting, automatic target identification, aperture photometry of target and standard stars, single-frame ensemble photometry data reduction, multi-frame color coefficient fitting, extinction coefficient fitting, and all-sky photometry. It also controls CCD cameras and telescopes, and implements automatic observation scripting. Cameras are controlled through a hardware-specific server, to which gcx connects through a TCP socket. The program can control telescopes which use the LX200 protocol, and refine pointing by matching images to the GSC catalog position of stars. It generates FITS files with comprehensive header information.

Operating Systems

Recent releases

  •  13 Dec 2005 21:56

    Release Notes: This release fixes some endianness issues on fits I/O, and more properly formats filter names in photometry reports. In addition, it has been verified to compile on OS X. Debian and RPM binary packages have been added to the distribution, as well as a proper man page.

    •  17 Nov 2005 01:27

      Release Notes: Support for reading CD_ and PC_ wcs fits headers was added. Yet another WCS convergence issue was fixed.

      •  15 Oct 2005 23:37

        Release Notes: This release adds an option to automatically select or generate recipe files when reducing a list of different targets. A command allowing trial photometry of a frame was added to the CCD reduction dialog. Several bugfixes have been incorporated.

        •  14 Sep 2005 22:30

          Release Notes: An error that caused the detection of "declination reversals" in the telescope control routines to fail has been fixed.

          •  14 Sep 2005 22:30

            Release Notes: This release adds an option to set the system clock by polling a GPF receiver so that accurate time can be stamped on images.


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