skip to content

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 20 questions, generally takes just a few minutes to complete, and your answers will remain totally anonymous. The survey is open until Dec 18, 2023. We thank you in advance for your valuable feedback.

XMM-Newton Guest Observer Facility


The XMM trend data files have been created to provide an easily accessible source of general observatory status with a 64 second cadence for each orbit (~48 hours). The trend data files are grouped by one hundred orbits.

Trend data are in standard FITS files with documentation in the FITS header. With HEASoft installed the file information can be easily accessed using the fits viewer tool fv.

Trend data includes the satellite location and look direction, the operational modes of the EPIC detectors and their count rates in several bands, solar wind parameters from the ACE satellite, and a variety of other details.

SWCX Tool / Soft Proton Tool to display potentially useful PDF images from the trend data files.

A list of the current Orbits/Observations available in the trend archive covering most orbits in the range: 0000-1999.

The following command will allow you to mirror ALL the trend data (33 Gb):

wget -m -o trend_mirror.log -nH --cut-dirs=3 --retr-symlinks -np -A FIT.gz -np -R "index.html*"

If you have any questions concerning XMM-Newton send e-mail to