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Explorer B
Status: Operational 1958. First Launch: 1958-07-26. Last Launch: 1958-07-26. Number: 1 . Gross mass: 8.00 kg (17.60 lb).
Family: Earth, Magnetosphere sat. Country: USA. Launch Vehicles: Redstone, Jupiter C. Projects: Explorer. Launch Sites: Cape Canaveral, Cape Canaveral LC5. Agency: DARPA. Bibliography: 2, 279, 3728, 6.
1958 July 26 - . 15:00 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC5. LV Family: Redstone. Launch Vehicle: Jupiter C.
- Explorer 4 - . Payload: Explorer B. Mass: 8.00 kg (17.60 lb). Nation: USA. Related Persons: von Braun. Agency: DARPA. Program: Explorer. Class: Earth. Type: Magnetosphere satellite. Spacecraft Bus: Explorer. Spacecraft: Explorer B. Decay Date: 1959-10-23 . USAF Sat Cat: 9 . COSPAR: 1958-Epsilon-1. Apogee: 1,352 km (840 mi). Perigee: 257 km (159 mi). Inclination: 50.20 deg. Period: 100.90 min. Mapped project Argus radiation. .
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