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


Last Update: 2018 April 19

As of this date, the HEASARC's high-energy archive is growing about 44 Gigabytes (GB) every day, equivalent to 16 Terabytes (TB) every year.

HEASARC users are downloading about 520 GB of X-ray and gamma-ray data every day, equivalent to about 189 TB/year. This can be compared with the current 100 TB size of the entire HEASARC High-Energy Archive. Thus, in one year the HEASARC user community downloads a data volume 1.9 times the size of the 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


HEASARC Home | Observatories | Archive | Calibration | Software | Tools | Students/Teachers/Public

Last modified: Thursday, 19-Apr-2018 09:36:55 EDT

The HEASARC welcomes your participation in a brief survey to capture how users access and utilize HEASARC data, software, and services. The outcome(s) of this survey will be used to guide, prioritize, and plan our activities and development in the coming years. It contains 18 questions, generally takes just a few minutes to complete, and your answers will remain totally anonymous. We thank you in advance for your valuable feedback.