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Class: Earth. Type: Magnetosphere. Nation: USA. Agency: DARPA. Mapped project Argus radiation. Typical orbit: 257 km x 1352 km at 50 degrees inclination. Mass: 8.00 kg (17.60 lb).
Explorer B Chronology - 1958 July 26 - Explorer 4 - Program: Explorer. Launch Site: Cape Canaveral. Launch Complex: LC5. Launch Vehicle: Redstone. Mass: 8.00 kg (17.60 lb). Perigee: 257 km (159 mi). Apogee: 1,352 km (840 mi). Inclination: 50.20 deg. Period: 100.90 min.
Mapped project Argus radiation.
Bibliography:- McDowell, Jonathan, Jonathan's Space Home Page (launch records), Harvard University, 1997-present. Web Address when accessed: http://www.planet4589.org/jsr.html.
- JPL Mission and Spacecraft Library, Jet Propulsion Laboratory, 1997. Web Address when accessed: http://msl.jpl.nasa.gov/home.html.
- McDowell, Jonathan, Launch Log, October 1998. Web Address when accessed: http://hea-www.harvard.edu/~jcm/space/log/launch.html.
- NASA Report, Environmental test program for the atmosphere Explorer-B spacecraft Final report, Web Address when accessed: http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19670003837_1967003837.pdf.
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© Mark Wade, 1997 - 2008 except where otherwise noted.
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