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- Explorer_1 abstract "Explorer 1 was the first satellite of the United States, launched as part of its participation in the International Geophysical Year. The mission followed the first two satellites the previous year; the Soviet Union's Sputnik 1 and 2, beginning the Cold War Space Race between the two nations.Explorer 1 was launched on January 31, 1958 at 22:48 Eastern Time (equal to February 1, 03:48 UTC) atop the first Juno booster from LC-26 at the Cape Canaveral Missile Annex, Florida. It was the first spacecraft to detect the Van Allen radiation belt, returning data until its batteries were exhausted after nearly four months. It remained in orbit until 1970, and has been followed by more than 90 scientific spacecraft in the Explorer series.Explorer 1 was given Satellite Catalog Number 4, and the Harvard designation 1958 Alpha 1, the forerunner to the modern International Designator.".
- Explorer_1 thumbnail Explorer1.jpg?width=300.
- Explorer_1 wikiPageExternalLink expinfo.html.
- Explorer_1 wikiPageExternalLink profile.cfm?MCode=Explorer_01.
- Explorer_1 wikiPageExternalLink index.html.
- Explorer_1 wikiPageExternalLink watch?feature=player_embedded&v=Osqro0m9clQ.
- Explorer_1 wikiPageID "61536".
- Explorer_1 wikiPageRevisionID "601778348".
- Explorer_1 apsis "gee".
- Explorer_1 decayDate "1970-03-31".
- Explorer_1 description ""Army Explorers in Space "".
- Explorer_1 description ""Atlas In Orbit. Radios Ike's Message Of Peace To World, 1958/12/22 "".
- Explorer_1 harvardDesignation "1958".
- Explorer_1 hasPhotoCollection Explorer_1.
- Explorer_1 id "1958-12-22".
- Explorer_1 id "arspace1958".
- Explorer_1 id "gov.archives.arc.2569665".
- Explorer_1 imageCaption "Photograph of the Explorer 1".
- Explorer_1 lastContact "1958-05-23".
- Explorer_1 launchDate "--02-01".
- Explorer_1 launchRocket "Juno I RS-29".
- Explorer_1 launchSite Cape_Canaveral_Air_Force_Station.
- Explorer_1 launchSite Cape_Canaveral_Air_Force_Station_Launch_Complex_26.
- Explorer_1 manufacturer Jet_Propulsion_Laboratory.
- Explorer_1 missionDuration "9590400.0".
- Explorer_1 missionType Earth_science.
- Explorer_1 name "Big Picture: Army Satellites".
- Explorer_1 name "Explorer 1".
- Explorer_1 operator Army_Ballistic_Missile_Agency.
- Explorer_1 orbitArgPeriapsis "311.531".
- Explorer_1 orbitEccentricity "0.1398490071296692".
- Explorer_1 orbitEpoch "--03-31".
- Explorer_1 orbitInclination "33.2400016784668".
- Explorer_1 orbitMeanAnomaly "48.3249".
- Explorer_1 orbitMeanMotion "16.27546304".
- Explorer_1 orbitPeriod "6888.000183105469".
- Explorer_1 orbitRaan "334.6171".
- Explorer_1 orbitReference Geocentric_orbit.
- Explorer_1 orbitRegime Medium_Earth_orbit.
- Explorer_1 orbitRevNumber "58402".
- Explorer_1 power "60".
- Explorer_1 satcat "4".
- Explorer_1 subject Category:1958_in_the_United_States.
- Explorer_1 subject Category:Artificial_satellites_formerly_orbiting_Earth.
- Explorer_1 subject Category:Explorer_program.
- Explorer_1 subject Category:First_artificial_satellite_of_a_country.
- Explorer_1 subject Category:Individual_spacecraft_in_the_collection_of_the_Smithsonian_Institution.
- Explorer_1 subject Category:Spacecraft_launched_in_1958.
- Explorer_1 subject Category:Spacecraft_which_reentered_in_1970.
- Explorer_1 type ArtificialSatellite.
- Explorer_1 type Satellite.
- Explorer_1 type Thing.
- Explorer_1 comment "Explorer 1 was the first satellite of the United States, launched as part of its participation in the International Geophysical Year. The mission followed the first two satellites the previous year; the Soviet Union's Sputnik 1 and 2, beginning the Cold War Space Race between the two nations.Explorer 1 was launched on January 31, 1958 at 22:48 Eastern Time (equal to February 1, 03:48 UTC) atop the first Juno booster from LC-26 at the Cape Canaveral Missile Annex, Florida.".
- Explorer_1 label "Explorer 1".
- Explorer_1 label "Explorer 1".
- Explorer_1 label "Explorer 1".
- Explorer_1 label "Explorer 1".
- Explorer_1 label "Explorer 1".
- Explorer_1 label "Explorer 1".
- Explorer_1 label "Explorer 1".
- Explorer_1 label "Explorer I".
- Explorer_1 label "Эксплорер-1".
- Explorer_1 label "إكسبلورر 1".
- Explorer_1 label "エクスプローラー1号".
- Explorer_1 label "探险者1号".
- Explorer_1 sameAs Explorer_1.
- Explorer_1 sameAs Explorer_1.
- Explorer_1 sameAs Explorer_1.
- Explorer_1 sameAs Explorer_1.
- Explorer_1 sameAs Explorer_1.
- Explorer_1 sameAs Explorer_1.
- Explorer_1 sameAs Explorer_1.
- Explorer_1 sameAs Explorer_1.
- Explorer_1 sameAs エクスプローラー1号.
- Explorer_1 sameAs 익스플로러_1호.
- Explorer_1 sameAs Explorer_1.
- Explorer_1 sameAs Explorer_1.
- Explorer_1 sameAs Explorer_I.
- Explorer_1 sameAs m.0gnwb.
- Explorer_1 sameAs Q49901.
- Explorer_1 sameAs Q49901.
- Explorer_1 wasDerivedFrom Explorer_1?oldid=601778348.
- Explorer_1 depiction Explorer1.jpg.
- Explorer_1 isPrimaryTopicOf Explorer_1.