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Explorer program vehicles
Dedicated spacecraft and related vehicle records for Explorer program, including when they are part of the program archive.
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Showing 29 of 29 vehicle archive records.
Explorer program
Showing 1–12 of 29
Neil Gehrels Swift Observatory observatoryHigh-energy astronomy observatoryActiveNeil Gehrels Swift Observatory observatory was a about 3,250 pounds (1,470 kilograms) high-energy observatory operated by NASA Goddard Space Flight Center with Pennsylvania State University and international partners.Transiting Exoplanet Survey Satellite observatoryOrbital astronomy observatoryActiveTransiting Exoplanet Survey Satellite observatory was a about 772 pounds (350 kilograms) observatory operated by NASA Goddard Space Flight Center with Massachusetts Institute of Technology.Advanced Composition Explorer spacecraftHeliophysics and geospace observatoryActiveAdvanced Composition Explorer spacecraft was a 1,658 pounds (752 kilograms) observatory operated by NASA Goddard Space Flight Center with Johns Hopkins APL and Caltech.COBE observatoryOrbital astronomy observatoryInactiveCOBE observatory was a about 5,000 pounds (2,270 kilograms) space telescope operated by NASA Goddard Space Flight Center.Galaxy Evolution Explorer observatoryOrbital astronomy observatoryInactiveGalaxy Evolution Explorer observatory was a about 620 pounds (280 kilograms) observatory operated by NASA Jet Propulsion Laboratory and California Institute of Technology.IXPE observatoryX-ray polarimetry space observatoryActiveIXPE observatory launched at about 727 pounds (330 kilograms) under NASA Marshall Space Flight Center with the Italian Space Agency.Nuclear Spectroscopic Telescope Array observatoryHigh-energy astronomy observatoryActiveNuclear Spectroscopic Telescope Array observatory was a about 772 pounds (350 kilograms) high-energy observatory operated by NASA Jet Propulsion Laboratory and California Institute of Technology.Rossi X-ray Timing Explorer observatoryHigh-energy astronomy observatoryInactiveRossi X-ray Timing Explorer observatory was a about 7,055 pounds (3,200 kilograms) high-energy observatory operated by NASA Goddard Space Flight Center with Massachusetts Institute of Technology and University of California, San Diego.SPHEREx observatoryAll-sky near-infrared spectral survey observatoryActiveSPHEREx observatory launched or is planned to launch at 1,107 pounds (502 kilograms) under NASA Jet Propulsion Laboratory with Caltech, BAE Systems, and international science partners.THEMIS-ARTEMIS spacecraft constellationGeospace and heliophysics spacecraftActiveTHEMIS-ARTEMIS spacecraft constellation supported the THEMIS-ARTEMIS mission with 278 pounds (126 kilograms) per probe flight elements.
Juno ILaunch vehicleRetiredJuno I was the four-stage American launch vehicle that placed Explorer 1, the first successful United States satellite, into orbit.Extreme Ultraviolet Explorer observatoryOrbital astronomy observatoryMission concludedExtreme Ultraviolet Explorer observatory was a about 7,200 pounds (3,270 kilograms) space telescope operated by NASA with University of California, Berkeley.