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- Transit_3B abstract "Transit 3B was an American satellite which was launched in 1961 and operated by the United States Navy. It was a replacement for Transit 3A, which was lost in a launch failure the previous year. It carried instruments to demonstrate navigation and timing systems, and study geodesy to support the development of the Transit satellite navigation system.The launch of Transit 3B was conducted at 03:45 UTC on 22 February 1961, using a Thor DM-21 Ablestar rocket flying from Launch Complex 17B at the Cape Canaveral Air Force Station. The LOFTI-1 satellite was launched aboard the same rocket. The rocket and upper stage used had the serial numbers Thor 313 and Ablestar 007 respectively. The launch resulted in a partial failure, with the spacecraft being placed in a more eccentric orbit than planned, and failing to separate from the upper stage.Transit 3B was a 113-kilogram (249 lb) spacecraft, which was powered by 6,600 solar cells charging a nickel-cadmium battery. It ended up in a low Earth orbit with a perigee of 167 kilometres (104 mi), an apogee of 1,002 kilometres (623 mi), and 28.3 degrees of inclination. It had an orbital period of 96.4 minutes. Due to the low perigee of its orbit, Transit 3B decayed quickly, and reentered the atmosphere on 30 March 1961, less than 37 days after launch. Despite being in the wrong orbit and operating for less time than had been planned, some useful data was returned from the mission.The systems demonstrated by Transit 3B included a digital clock to control timing signals, uploading programs into the onboard computer's memory whilst in orbit, data retention and FM encoding, and the use of phase modulation for data transmission without affecting the satellite's Doppler signal. The satellite's computer had a memory capacity of 48 bytes.".
- Transit_3B thumbnail Transit-3B.jpg?width=300.
- Transit_3B wikiPageID "27927116".
- Transit_3B wikiPageRevisionID "589397334".
- Transit_3B apsis "gee".
- Transit_3B decayDate "1961-03-30".
- Transit_3B harvardDesignation "1961".
- Transit_3B hasPhotoCollection Transit_3B.
- Transit_3B imageCaption "Transit 3B before launch".
- Transit_3B launchDate "1961-02-22".
- Transit_3B launchRocket "Thor DM-21 Ablestar 313/AB-007".
- Transit_3B launchSite Cape_Canaveral_Air_Force_Station.
- Transit_3B launchSite Cape_Canaveral_Air_Force_Station_Space_Launch_Complex_17.
- Transit_3B manufacturer Applied_Physics_Laboratory.
- Transit_3B missionType "Geodesy".
- Transit_3B missionType "Navigation".
- Transit_3B missionType "Technology".
- Transit_3B name "Transit 3B".
- Transit_3B operator United_States_Navy.
- Transit_3B orbitInclination "28.3".
- Transit_3B orbitPeriod "5784.0".
- Transit_3B orbitReference Geocentric_orbit.
- Transit_3B orbitRegime Low_Earth_orbit.
- Transit_3B satcat "87".
- Transit_3B subject Category:Partial_satellite_launch_failures.
- Transit_3B subject Category:Spacecraft_launched_in_1961.
- Transit_3B subject Category:Spacecraft_which_reentered_in_1961.
- Transit_3B type ArtificialSatellite.
- Transit_3B type Satellite.
- Transit_3B type Thing.
- Transit_3B comment "Transit 3B was an American satellite which was launched in 1961 and operated by the United States Navy. It was a replacement for Transit 3A, which was lost in a launch failure the previous year.".
- Transit_3B label "Transit 3B".
- Transit_3B label "Transit 3B".
- Transit_3B sameAs Transit_3B.
- Transit_3B sameAs m.0ch45ml.
- Transit_3B sameAs Q7834334.
- Transit_3B sameAs Q7834334.
- Transit_3B wasDerivedFrom Transit_3B?oldid=589397334.
- Transit_3B depiction Transit-3B.jpg.
- Transit_3B isPrimaryTopicOf Transit_3B.
