National Aeronautics and Space Administration

How Much X-ray and Gamma-ray Data Are Coming In and Going Out of the HEASARC Archive Every Day?

Last Update: 2012 May 16

As of Spring 2012, the HEASARC's high-energy archive was growing about 15 Gigabytes (GB) every day, equivalent to over 5 Terabytes (TB) every year.

HEASARC users download about 190 GB/day of X-ray and gamma-ray data, equivalent to about 70 TB/year. This can be compared with the current 40 TB size of the entire HEASARC Archive.

For more detailed statistics, including a breakdown of the data holdings by mission, check out the HEASARC Usage Statistics webpage.

Web page author and maintainer: Stephen A. Drake