Dec 12 1968
From The Space Library
USAF launched two unidentified satellites from Vandenberg AFB by Thor-Agena D booster. One entered orbit with 148-mi (238.3-km) apogee, 109-mi (175.4-km) perigee, 88.6-min period, and 81.0° inclination and reentered Dec. 28. Second satellite entered orbit with 916-mi (1,474.1-km) apogee, 862-mi (1,387.2-km) perigee, 114.4-min period, and 80.3° inclination. (Pres Rpt 68)
Two Nike-Cajun sounding rockets launched by NASA from Churchill Research Range carried GSFC experiments to 75-mi (120-km) and 78-mi (124.8-km) altitudes to obtain temperature, pressure, density, and wind variation data in atmosphere between 21.8- and 59-mi (35- and 95-km) altitudes by detonating grenades at various altitudes and recording their sound arrival on ground. Grenades exploded as planned. Launches were coordinated with series at Point Barrow, Alaska. (NASA Rpts Sm.)
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