HEASARC
NASA's designated multi-mission astronomy archive for cosmic astronomy datasets for observations in the extreme ultraviolet (EUV), X-ray, and gamma-ray wave bands, as well as for cosmic microwave background (CMB) datasets.LAMBDA
LAMBDA is a multi-mission NASA center of expertise for cosmic microwave background (CMB) radiation research; it provides CMB researchers with archive data from cosmology missions, software tools, and links to other sites of interest.Please wait for the query to run. You will be redirected to the search portal
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Archive
Data discovery and exploration can be done through the interactive Web Portal
(The classic Browse portal remains available.)
API access is available through the Xamin API, the astroquery Heasarc module, or the Virtual Observatory protocols using pyvo. -
Cloud & Platforms
HEASARC@Sciserver is an analysis-ready platform where both data and software are available through the browser.
The HEASARC is also part of the NASA Fornax Initiative to build NASA's next generation cloud-based science platform.
HEASARC data are available in the cloud and on Sciserver. -
Software
- HEASoft 6.35.1 is now available.
- HEASoft and XSPEC are available as conda packages.
- HEASoft and other high energy software (CAIO, XMM-SAS, Fermitools, Spex etc) are installed and available on Sciserver.
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Latest News
- NuSTAR Caldb Update (29 Apr 2025)
The NuSTAR FPM caldb was updated to version 20250428. This release includes a new clock correction file, v204 using a new temperature model. Please see the release notes for more details. - Following repair, NICER improves daytime measurements (23 Apr 2025)
NICER has regained additional daytime observation capabilities thanks to repairs completed during a spacewalk in January and a reconfiguration of its detectors. - NuSTAR Caldb Update (16 Apr 2025)
The NuSTAR FPM caldb was updated to version 20250415. This release includes a new clock correction file, v203 using a new temperature model. Please see the release notes for more details. - NuSTAR Caldb Update (16 Apr 2025)
The NuSTAR FPM caldb was updated to version 20250415. This release includes a new clock correction file, v203 using a new temperature mod el. Please see the release notes for more details. - The first XRISM International Conference (10 Apr 2025)
The first XRISM International Conference will be held in Kyoto, Japan, Oct 20-24th 2025. Abstracts are due July 4th. - NuSTAR Caldb Update (07 Apr 2025)
The NuSTAR FPM caldb was updated to version 20250331. This release includes a new clock correction file, v202 using a new temperature model. Please see the release notes for more details.
- NuSTAR Caldb Update (29 Apr 2025)
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Upcoming Deadlines
- 05/15/2025:Cycle 2-Type 1 Deadline for XRISM General Observer Proposal
- 05/15/2025:Cycle 2-Type 2 Deadline for XRISM General Observer Proposal
- 10/10/2025:AO-25 XMM Newton Deadline
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Upcoming Meetings
- AXIS Community Science Workshop: 2025 May 14 - 16
- Chandra/CIAO Workshop: 2025 May 19 - 23
- Massive Galaxies: 2025 Jun 09 - 13
- X-ray Quasi-Periodic Eruptions and Repeating Nuclear Transients: 2025 Jun 16 - 19