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- Explorer_7 abstract "Explorer 7 was launched October 13, 1959 at 10:36 a.m. Eastern Time by a Juno II rocket from Cape Canaveral Air Force Station to an orbit of 573 km by 1073 km and inclination of 50.27°. It was designed to measure solar x-ray and Lyman-alpha flux, trapped energetic particles, and heavy primary cosmic rays. Also Secondary objectives included collecting data on micrometeoroid penetration and molecular sputtering and studying the earth-atmosphere heat balance. The Explorer 7 micrometeorite impacts studies can be found under the NASA paper "RESULTS OF MICROMETEORITE PENETRATION EXPERIMENTON THE EXPLORER VII SATELLITE[1959 IOTA] LaGow and L. SecretanGoddard Space Flight CenterSignificantly, it also carried Verner Suomi's flat-plate radiometer, improved with the help of Robert Parent, that took the first Earth radiation budget measurements from space and initiated the era of satellite studies of the climate. Using both satellite observations of the Earth's heat balance and atmospheric cooling rates measured by net flux radiosondes, Suomi established the important role played by clouds in absorbing radiated solar energy. These observations established that Earth’s energy budget varies markedly due to the effect of clouds, the surface albedo, and other absorbing constituents. Using these instruments, Suomi and his team discovered that the Earth absorbed more of the Sun's energy than originally thought and demonstrated that it was possible to measure and quantify seasonal changes in the global heat budget.The satellite weighed 41.5 kg, was 75 cm high and 75 cm wide. Powered by solar cells it also carried 15 nickel-cadmium batteries around its equator.It transmitted data continuously through to February 1961 and went dead August 24, 1961. It is still in orbit.".
- Explorer_7 thumbnail Installing_Explorer_VII.jpg?width=300.
- Explorer_7 wikiPageID "1283277".
- Explorer_7 wikiPageRevisionID "588599182".
- Explorer_7 apsis "gee".
- Explorer_7 harvardDesignation "1959".
- Explorer_7 hasPhotoCollection Explorer_7.
- Explorer_7 lastContact "1961-08-24".
- Explorer_7 launchDate "--10-13".
- Explorer_7 launchRocket Juno_II.
- Explorer_7 launchSite Cape_Canaveral_Air_Force_Station.
- Explorer_7 launchSite Cape_Canaveral_Air_Force_Station_Launch_Complex_5.
- Explorer_7 manufacturer Jet_Propulsion_Laboratory.
- Explorer_7 missionDuration "6.31152E7".
- Explorer_7 missionType Earth_science.
- Explorer_7 name "Explorer 7".
- Explorer_7 operator NASA.
- Explorer_7 orbitArgPeriapsis "215.06".
- Explorer_7 orbitEccentricity "0.015834".
- Explorer_7 orbitEpoch "--12-17".
- Explorer_7 orbitInclination "50.28".
- Explorer_7 orbitMeanAnomaly "186.76".
- Explorer_7 orbitMeanMotion "14.87".
- Explorer_7 orbitPeriod "5806.8".
- Explorer_7 orbitRaan "48.57".
- Explorer_7 orbitReference Geocentric_orbit.
- Explorer_7 orbitRegime Low_Earth_orbit.
- Explorer_7 orbitRevNumber "87055".
- Explorer_7 satcat "22".
- Explorer_7 subject Category:1959_in_the_United_States.
- Explorer_7 subject Category:Artificial_satellites_orbiting_Earth.
- Explorer_7 subject Category:Explorer_program.
- Explorer_7 subject Category:Spacecraft_launched_in_1959.
- Explorer_7 type ArtificialSatellite.
- Explorer_7 type Satellite.
- Explorer_7 type Thing.
- Explorer_7 comment "Explorer 7 was launched October 13, 1959 at 10:36 a.m. Eastern Time by a Juno II rocket from Cape Canaveral Air Force Station to an orbit of 573 km by 1073 km and inclination of 50.27°. It was designed to measure solar x-ray and Lyman-alpha flux, trapped energetic particles, and heavy primary cosmic rays. Also Secondary objectives included collecting data on micrometeoroid penetration and molecular sputtering and studying the earth-atmosphere heat balance.".
- Explorer_7 label "Explorer 7".
- Explorer_7 label "Explorer 7".
- Explorer_7 label "Explorer 7".
- Explorer_7 label "Explorer 7".
- Explorer_7 label "Эксплорер-7".
- Explorer_7 label "エクスプローラー7号".
- Explorer_7 sameAs Explorer_7.
- Explorer_7 sameAs Explorer_7.
- Explorer_7 sameAs Explorer_7.
- Explorer_7 sameAs エクスプローラー7号.
- Explorer_7 sameAs Explorer_7.
- Explorer_7 sameAs Explorer_7.
- Explorer_7 sameAs m.04pz0v.
- Explorer_7 sameAs Q2509028.
- Explorer_7 sameAs Q2509028.
- Explorer_7 wasDerivedFrom Explorer_7?oldid=588599182.
- Explorer_7 depiction Installing_Explorer_VII.jpg.
- Explorer_7 isPrimaryTopicOf Explorer_7.