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INTEGRAL U.S. Guest Observer Facility

The INTErnational Gamma-Ray Astrophysics Laboratory

INTEGRAL, was launched in October 2002 aboard a Russian Proton rocket,  and is providing a new insight into the most violent and exotic objects of the Universe,  such as neutron stars, active galactic nuclei and supernovae. INTEGRAL is also helping us to understand processes such as the formation of new chemical elements and the mysterious gamma-ray bursts, the most energetic phenomena in the Universe. Environments of extreme temperature and density, near the event-horizons of black holes, are a major topic of study with INTEGRAL.

These studies are possible thanks to INTEGRAL's combination of fine spectroscopy and imaging of gamma-ray emissions in the energy range of 15 keV to 10 MeV (using the SPI and IBIS instruments) and concurrent monitoring in the X-ray band (4-35 keV) using JEM-X, and in the optical (500-600 nm) band, using the OMC.

A project of the European Space Agency INTEGRAL, serves an international Guest Observer community. Participation by U.S. astronomers was supported by a Guest Observer Facility (GOF) at the NASA/Goddard Space Flight Center (GSFC) from the mission start until October 2010. Since then, the mirroring of the European INTEGRAL Public Data Archive into the HEASARC has been continued by the HEASARC.

Picture of the Month

Integral Picture of the Month

INTEGRAL News & Science Results

INTEGRAL TOO observations of IceCube-170321A
(March 22, 2017)

Happy 14th birthday INTEGRAL!
(October 17, 2016)

INTEGRAL TOO observations of GRS 1758-258
(September 21, 2016)

INTEGRAL TOO observations of MAXI J0911-655
(April 21, 2016)

INTEGRAL sets limits to gamma rays from merging black holes
(March 29, 2016)

Gust of antimatter in V404 Cygni (GS 2023+238)
(March 1, 2016)

INTEGRAL X-rays Earth's aurora
(January 26, 2016)

Integral in orbit

Latest INTEGRAL News

  • INTEGRAL AO-15 General Program Approved (8 Jun 2017)
    The INTEGRAL AO-15 General Program, as recommended by the Time Allocation Committee (TAC) and approved by ESA's Director of Science (Prof. Alvaro Giménez), has been released and the observers have been informed.
  • 15th INTEGRAL Announcement of Opportunity (21 Mar 2017)
    The ESA Director of Science and Robotic Exploration (Prof. Alvaro Giménez Cañete) has released the 15th Announcement of Opportunity for observing proposals with INTEGRAL. The deadline for proposal submission is March 31, 2017. Additional information can be found on the ESA INTEGRAL website.
  • Two-Year Extension for ESA-led Missions (7 Dec 2016)
    ESA's Science Programme Committee (SPC) has confirmed two-year extensions for nine scientific missions including INTEGRAL and XMM-Newton. This secures their operation until the end of 2018.
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    INTEGRAL Picture of the Month archive
    Latest INTEGRAL Newsletter
    Latest ISDC Newsletter
    INTEGRAL News & Science Results
    INTEGRAL Publications (ESA list)

    INTEGRAL Public Data Archive Status
  • The HEASARC mirror to the INTEGRAL Public Data Archive now contains data through the July 25, 2017 public data release (revolution 1692). It also contains all data from recent observations for which the PI has allowed the data to be made public earlier than the 1 year proprietary period.

  • The next scheduled public data release is August 10, 2017.

    ISDC Public Data Release Schedule.

  • This page is intended for members of the scientific community. For members of the general public, or those interested in general astronomy/astrophysics information please go to our Education and Public Outreach site.