IXPE Data Archive

The IXPE data are processed at MSFC after completion of a science observation and then sent to the HEASARC for archiving. After a three month checkout period, the data will be publicly available within one week of the observation completion. Note: It is still very early in the IXPE mission and flaws are being found in the processing and fixed. For each observation a readme file is being included in the archive that describe know issues with the processing for that observation.

The data products are provided as event lists of processed tracks giving polarization information in sky coordinates. This processing is described in the IXPE Observatory User Guide. Also archived are the lower level event files as well as housekeeping and auxiliary data, though these are not needed for most science use cases.

Note that some observations include data from a number of different time periods.

IXPE Archive Access

IXPE data can be accessed through the following HEASARC multi-mission interfaces:

HEASARC Browse interface The classic multi-mission interface
HEASARC Xamin interface (including a command-line batch interface) HEASARC next-generation multi-mission data portal
Astronomy data access through Python Using Python and generic VO interfaces.
Anonymous FTP via HTTPS and related command-line download methods Direct data retrieval without browsing the observation logs.

Latest News

  • IXPE Caldb Updated (17 Nov 2022)
    The IXPE Caldb has been updated for the XRT (version 20221021) and the GPD (version 20221020). Downloads are available from the IXPE Calibration page. Users can also access the HEASARC caldb remotely.
  • A New Slant on Cas A (17 Nov 2022)
    IXPE image of magnetic fields in Cas A hits the HEASARC Picture of the Week
  • IXPE archive is open! (14 Mar 2022)
    The HEASARC has opened the IXPE data archive. Currently, Cas A and Cen X-3 datasets are available.
  • IXPE first light image of Cas A! (14 Feb 2022)
    IXPE has released its first light image of supernova remnant Cassiopeia A using data taken in January.
  • IXPE begins science operations. (13 Jan 2022)
    IXPE begins science operations with an observation of the supernova remnant Cassiopeia A.