May 11 1961
From The Space Library
Jet Propulsion Laboratory briefed NASA headquarters on the Venus radar tracking experiment, after 2 months of intensive study begun on March 10.
U.S.S.R's Izvestia headlined the result of Soviet radar probes of planet Venus, a report which said that the Venusian day was from 9 to 11 Earth days, and that the astronomical unit (mean distance from the Earth to the Sun) was computed at 149,457,000 kilometers (92,812,797 miles). These figures were at variance with detailed study by scientists of JPL and MIT.
Static test of 111 seconds' duration of Saturn booster was successful, the final SA-1 flight qualification test of the S–I stage.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
