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Surveyor 4
Surveyor model on Earth
Mission type
Lunar lander
Operator
NASA
COSPAR ID
1967-068A
SATCAT no.
02875
Mission duration
62 hrs. 9 min. 1 sec. (launch to last contact)
Spacecraft properties
Manufacturer
Hughes Aircraft
Launch mass
1,037.4 kg[1]
Dry mass
283 kilograms (624 lb)[2]
Start of mission
Launch date
July 14, 1967, 11:53:29 (1967-07-14UTC11:53:29Z) UTC [1]
Rocket
Atlas LV-3C Centaur-D AC-11
Launch site
Cape Canaveral LC-36A
End of mission
Last contact
July 17, 1967, 02:02:30 (1967-07-17UTC02:02:31Z) UTC (approx)
Lunar impact (failed landing)
Impact date
July 17, 1967, 02:05:00 UTC
Impact site
0°27′N1°23′W / 0.45°N 1.39°W / 0.45; -1.39
Surveyor
← Surveyor 3
Surveyor 5 →
Surveyor 4 is the fourth lunar lander in the American uncrewed Surveyor program sent to explore the surface of the Moon. This spacecraft crashed after an otherwise flawless mission; telemetry contact was lost 2.5 minutes before touchdown. The planned landing target was Sinus Medii (Central Bay) at 0.4° north latitude and 1.33° west longitude.
Surveyor 6 successfully landed near the crash site of Surveyor 4 a few months later in November 1967.
^ ab"Surveyor 4". NASA's Solar System Exploration website. Retrieved December 2, 2022.
^"Surveyor 4". NASA Space Science Data Coordinated Archive. NASA.
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