These Web-based tools are designed to assist
scientists in their proposal and general data analysis efforts. The
HEASARC provides these tools as a service to the scientific community.
[FTOOLS, a general
FITS file utility programs and
mission-specific data analysis tools can be found on the
– Bibliographic references to HEASARC services and missions
Viewing tool updated(20 Jul 2016)
Swift's orbital pole constraints have been updated in the
Viewing tool. The revised coefficients extrapolate the trend for the
Viewing tool updated(08 Mar 2016)
The Viewing software has been updated to version 3.4. Chandra's
Sun-angle constraint has been updated. For Chandra, it will also now report
the visibility windows for unrestricted observations.