National Aeronautics and Space Administration

General Tools

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. (HEASoft/FTOOLS, a general library of FITS file utility programs and mission-specific data analysis tools can be found on our Software page.)

• Bibliography – Bibliographic references to HEASARC services and missions
• Coordinate Converter – CoCo: Object location and coordinate converter
• Energy Converter – Energy/frequency/wavelength converter
• FITS File Verifier – Run fverify on any of your own FITS files
• nH Column Density – Determine the neutral hydrogen column density by sky coordinates
• Time/Date Converter (xTime) – Convert between Julian date formats and standard date formats such as YYYY-MM-DD
• Universal Atomic Database – Find atomic physics quantities needed for astrophysical research
• X-Ray Background – Calculate average X-ray background count rates from the ROSAT All-Sky Survey diffuse background maps
• X-Ray, Gamma-Ray, and EUV Source Finder – Is your favorite object a high-energy source?