Status
Success
DSAP-4B F3
Launch Time
Wed Jul 23, 1969 04:39 UTC
Wed Jul 23, 1969 04:39 UTC
Rocket
Mission Details
DSAP-4B F3
DSAP-4B (Defense Satellite Application Program Block 4B) was the sixth version of the military meteorological satellites of the Defense Meteorological Satellite Program.
The DSAP-4B satellites, slightly larger than their predecessors, was 30 inches in diameter, 29 inches high, and weighed 175 pounds. Still spin-stabilized, the satellite nonetheless provided improved weather coverage. They were a slightly improved version of the Block 4a satellite.
Previously, the single 1/2-inch focal length RCA vidicon television camera in Block 1 and Block 2 satellites furnished a nadir resolution of 3-to-4 nautical miles (nm) over an 800 nm swath, with significant gaps in coverage of the Earth at the equator.
Payloads: 1
Total Mass: 513.0 kg
Sun-Synchronous Orbit
Location
SLC-10W (75-2-6), Vandenberg SFB, California, USA
Stats
1969
72nd orbital launch attempt
Thor-Burner
14th mission
1st mission of 1969
12th successful mission
9th consecutive successful mission