Lunar Orbiter 1

Lunar Orbiter 1
	Replica of a Lunar Orbiter spacecraft
Mission type	Lunar orbiter
Operator	NASA
COSPAR ID	1966-073A
SATCAT no.	2394
Website	science.nasa.gov
Mission duration	2 months, 19 days
Spacecraft properties
Manufacturer	Boeing
Launch mass	386.9 kg (853 lb)
Dimensions	3.72 × 1.65 × 1.5 m (12.2 × 5.4 × 4.9 ft)
Power	375 watts
Start of mission
Launch date	August 10, 1966, 19:31 UTC
Rocket	Atlas SLV-3 Agena-D
Launch site	Cape Canaveral LC-13
End of mission
Disposal	Deorbited
Decay date	October 29, 1966, 13:29 GMT
Orbital parameters
Reference system	Selenocentric
Semi-major axis	2,694 km (1,674 mi)
Eccentricity	0.33
Periselene altitude	189.1 to 40.5 km (117.5 to 25.2 mi)
Aposelene altitude	1,866.8 km (1,160.0 mi)
Inclination	12 degrees
Period	208.1 minutes
Lunar orbiter
Orbital insertion	August 14, 1966
Impact site	6°21′N 160°43′E / 6.35°N 160.72°E
Orbits	577
Transponders
Frequency	2295 MHz
-
Instruments
-	Cesium Iodide Dosimeters
-	Lunar Photographic Studies
-	Meteoroid Detectors
-	Selenodesy
	Lunar Orbiter program Lunar Orbiter 2 →

The 1966 Lunar Orbiter 1 robotic spacecraft mission, part of NASA's Lunar Orbiter program,^[9] was the first American spacecraft to orbit the Moon. It was designed primarily to photograph smooth areas of the lunar surface for selection and verification of safe landing sites for the Surveyor and Apollo missions. It was also equipped to collect selenodetic, radiation intensity, and micrometeoroid impact data.

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Lunar Orbiter 1

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