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The High Energy Astrophysics Science Archive Research Center (HEASARC) is the
primary archive for NASA's (and other space agencies') missions studying
electromagnetic radiation from
extremely energetic cosmic phenomena ranging from
black holes to the Big Bang. Since its
merger with the Legacy Archive for Microwave Background Data Analysis
(LAMBDA) in 2008, the HEASARC
archive contains data
obtained by high-energy astronomy missions observing in the
extreme-ultraviolet (EUV), X-ray, and gamma-ray bands, as well as data from
space missions, balloons, and ground-based facilities that have studied the
relic cosmic microwave background (CMB) radiation in the sub-mm, mm and
cm bands.
The HEASARC is a member of the NASA Astronomical
Virtual Observatories (NAVO) where we work with other NASA archives to
ensure comprehensive and consistent VO access to NASA mission datasets.
Users may now query the HEASARC's catalogs using VO-enabled services and
specialized tools. This page describes
how to get to the HEASARC VO-enabled
services and provides information on other HEASARC VO activities.
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Latest News
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- NuSTAR Cycle 12 Targets (15 Apr 2026)
The list of NuSTAR targets recommended by the Cycle 12
peer review is now available. Cycle 12 observations will start to be
routinely performed on June 1, 2026. Evaluations will be sent to all
NuSTAR Cycle 12 proposal PIs in the coming weeks.
- XRISM Caldb Update (15 Apr 2026)
The XRISM Caldb for the Resolve and XTEND instruments has been updated to version 20260315 (CALDB 13). Tar files can be downloaded from the XRISM Calibration page.
- NuSTAR Caldb Update (15 Apr 2026)
The NuSTAR FPM caldb was updated to version 20260407. This release includes a new clock correction file, v226, using a new temperature model. Please see the release notes for more details. In addition, the previous caldb version 20260401, which includes a the clock correction file v225 was also released
- NuSTAR Caldb Update (15 Apr 2026)
The NuSTAR FPM caldb was updated to version 20260407. This release includes a new clock correction file, v226, using a new temperature model. Please see the release notes for more details. In addition, the previous caldb version 20260401, which includes a the clock correction file v225 was also released
- XRISM Caldb Update (15 Apr 2026)
The XRISM Caldb for the Resolve and XTEND instruments has been updated to version 20260315 (CALDB 13). Tar files can be downloaded from the XRISM Calibration page.
- Swift XRT CALDB updated (6 Apr 2026)
The Swift XRT caldb has been updated to version 20260327 to update the XRT gains...
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HEASARC News
Upcoming Dates & Deadlines
Upcoming Astronomy Meetings
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