 | The last of NASA's three High Energy Astronomy Observatories, HEAO 3 was launched 20 September 1979 on an Atlas-Centaur launch vehicle, into a nearly circular... 9 KB (1,103 words) - 15:07, 7 January 2024 |
 | Trajectory Details (HEAO 3)". NASA. Archived from the original on 2017-02-08. Retrieved 2008-02-27. "NASA – NSSDC – Spacecraft – Details (HEAO 3)". NASA. Archived... 125 KB (5,425 words) - 10:31, 6 April 2024 |
were denoted HEAO 1, HEAO 2 (also known as The Einstein Observatory), and HEAO 3, respectively. The large (~3000 kg) satellites were 3-axis stabilized... 5 KB (649 words) - 22:09, 24 January 2024 |
 | Einstein Observatory (redirect from HEAO-2) (HEAO-2) was the first fully imaging X-ray telescope put into space and the second of NASA's three High Energy Astrophysical Observatories. Named HEAO... 13 KB (1,167 words) - 08:56, 9 January 2024 |
gamma emission from the Galactic Center. The observation was made by the HEAO-3 satellite in 1984. 26Al is mainly produced in supernovae ejecting many radioactive... 20 KB (2,357 words) - 18:39, 15 April 2024 |
 | Division. NASA. September 18, 2019. Retrieved 10 December 2023. HEAO-C, known as HEAO-3 after insertion into orbit, continued the program's mission of... 99 KB (12,086 words) - 01:08, 14 April 2024 |
 | Magnetic Spectrometer Cassini–Huygens Fermi Gamma-ray Space Telescope HEAO 1, HEAO 2, HEAO 3 Interstellar Boundary Explorer Langton Ultimate Cosmic-Ray Intensity... 96 KB (10,495 words) - 21:50, 10 April 2024 |
 | first fully imaging X-ray telescope High Energy Astronomy Observatory 3 (HEAO 3), launched September 1979, completed Imager for Magnetopause-to-Aurora... 48 KB (3,950 words) - 22:02, 6 April 2024 |
 | (1997–2005) HEAO-1 (1977–1979) Herschel (2009–2013) Hinotori (Astro-A) (1981–1991) Hisaki (SPRINT-A) (2013-2023) HEAO-2 (Einstein Obs.) (1978–1982) HEAO-3 (1979–1981)... 5 KB (544 words) - 06:45, 8 April 2024 |
 | High Energy Astronomy Observatory 1 (redirect from HEAO 1) HEAO-1 was an X-ray telescope launched in 1977. HEAO-1 surveyed the sky in the X-ray portion of the electromagnetic spectrum (0.2 keV – 10 MeV), providing... 10 KB (1,211 words) - 15:23, 7 January 2024 |
 | area of greater than 300 cm2 at 1.5 keV." The probe weights 1450 kg and is 3-by-3.4 metres. Einstein Probe was launched on 9 January 2024, at 07:03 UTC by... 9 KB (738 words) - 15:18, 13 April 2024 |
 | Spectrometer Experiment) on CGRO, the C1 germanium (Ge) gamma-ray instrument on HEAO 3, and the Ge gamma-ray spectrometer (SPI) on the ESA INTEGRAL mission are... 14 KB (1,799 words) - 14:26, 11 December 2023 |
cryogenic germanium gamma-ray detectors. The HSRGS was launched aboard HEAO-3 in September 1979 and operated until the cryogenic fluid was exhausted in... 14 KB (1,511 words) - 20:04, 4 January 2024 |
High Energy Astronomy Observatory (redirect from HEAO) Energy Astronomy Observatory (HEAO 1) Einstein Observatory (HEAO 2) 3rd High Energy Astronomy Observatory (HEAO 3) HEAO Program Note that the correct... 364 bytes (78 words) - 07:02, 28 October 2009 |
 | Composition Explorer) Voyager 1 and Voyager 2 Cassini-Huygens HEAO 1, Einstein Observatory (HEAO2), HEAO 3 ISS-CREAM Balloon-borne BESS (Balloon-borne Experiment... 14 KB (1,473 words) - 15:27, 7 January 2024 |
 | flown: HEAO 1 in August 1977, HEAO 2 (also called the Einstein Observatory) in November 1978, and HEAO 3 in September 1979. Fred A. Speer was the HEAO project... 79 KB (9,711 words) - 06:59, 18 April 2024 |
to isolate the very rare events being sought. Nuclear electronics HEAO 1 HEAO 3 INTEGRAL Uhuru (satellite) Gamma-ray spectroscopy Laurence E. Peterson... 7 KB (859 words) - 11:14, 8 January 2024 |
 | 1 2 3 4 5 6 7 '62 '63 '64 '65 '66 '67 '68 '69 '70 '71 '72 '73 '74 '75 '76 '77 '78 '79 '80 '81 '82 '83 Success Failure Partial failure 1 2 3 4 5... 22 KB (205 words) - 12:39, 28 December 2022 |
million years subsequent to the Big Bang. DARE’s tentative schedule involves a 3-year lunar orbit, focusing on data collection above the Moon’s far side—a... 11 KB (1,210 words) - 15:23, 23 March 2024 |
 | (6000 kg) 20 September 05:28 Atlas SLV 3D Cape Canaveral pad LC 36B HEAO 3(HEAO C) Low Earth (43.6 degrees inclination) unknown Successful Civilian payload... 53 KB (193 words) - 22:13, 23 December 2023 |
VAFB, SLC-3W NOAA-6 (NOAA-A) Weather satellite SSO Success 20 September 1979 05:28 Atlas-Centaur SLV-3D AC-53 CCAFS, LC-36B HEAO-3 Astronomy LEO Success... 22 KB (169 words) - 04:51, 2 September 2022 |
 | meantime, in 1978, NASA launched the first imaging X-ray telescope, Einstein (HEAO-2), into orbit. Work continued on the AXAF project throughout the 1980s and... 37 KB (3,527 words) - 12:37, 9 April 2024 |
 | dedicated X-ray astronomy satellites, such as Uhuru, Ariel 5, SAS-3, OSO-8 and HEAO-1, developed this field of science at an astounding pace. Scientists... 55 KB (7,174 words) - 02:08, 8 April 2024 |
 | NASA launched the first imaging X-ray telescope, Einstein Observatory (HEAO-2), into orbit. Work continued on the Chandra project through the 1980s and... 29 KB (3,472 words) - 00:20, 11 April 2024 |
 | Virgo X-1 was the radio galaxy M87. Subsequent X-ray observations by the HEAO 1 and Einstein Observatory showed a complex source that included the active... 90 KB (9,553 words) - 00:12, 11 April 2024 |
 | 288..751S, doi:10.1086/162843 Giacconi, R.; et al. (1979), "The Einstein /HEAO 2/ X-ray Observatory", Astrophysical Journal, 230: 540–550, Bibcode:1979ApJ... 40 KB (3,263 words) - 19:13, 25 February 2024 |
 | Lewin was co-principal investigator on High Energy Astronomy Observatory 1 HEAO-1 (A4), which has yielded the first all sky catalog at high-energy X rays... 34 KB (3,635 words) - 09:04, 20 February 2024 |
 | Henry, J. P.; Jones, C.; Kellogg, E.; Koch, D. (June 1979). "The Einstein /HEAO 2/ X-ray Observatory". The Astrophysical Journal. 230: 540. Bibcode:1979ApJ... 41 KB (3,916 words) - 13:40, 10 April 2024 |
or documents of the National Aeronautics and Space Administration. "Ranger 3". www.jpl.nasa.gov. Retrieved 2018-10-14. This article incorporates public... 68 KB (752 words) - 18:36, 15 April 2024 |
instrument. TRW designed and built the following space observatories: HEAO 1, 2, and 3, with HEAO 2 being the Einstein Observatory, the first fully imaging X-ray... 71 KB (8,063 words) - 00:10, 15 January 2024 |