LADEE

The Lunar Atmosphere and Dust Environment Explorer (LADEE; /ˈlædi/) was a NASA lunar exploration and technology demonstration mission. It was launched on a Minotaur V rocket from the Mid-Atlantic Regional Spaceport on September 7, 2013. During its seven-month mission, LADEE orbited the Moon's equator, using its instruments to study the lunar exosphere and dust in the Moon's vicinity. Instruments included a dust detector, neutral mass spectrometer, and ultraviolet-visible spectrometer, as well as a technology demonstration consisting of a laser communications terminal. The mission ended on April 18, 2014, when the spacecraft's controllers intentionally crashed LADEE into the far side of the Moon, which, later, was determined to be near the eastern rim of Sundman V crater.

Lunar Atmosphere and Dust Environment Explorer
Artist's depiction of LADEE in lunar orbit
Mission typeLunar atmospheric research
OperatorNASA
COSPAR ID2013-047A
SATCAT no.39246
Websitenasa.gov/ladee
Mission durationPrimary mission: 100 days
Extended mission: 28 days
Total duration: 223 days
Spacecraft properties
BusMCSB
ManufacturerAmes Research Center
Launch mass383 kg (844 lb)
Dry mass248.2 kg (547 lb)
Payload mass49.6 kg (109 lb)
Dimensions1.85×1.85×2.37 m (6.1×6.1×7.8 ft)
Power295 watts
Start of mission
Launch dateSeptember 7, 2013, 03:27 (2013-09-07UTC03:27Z) UTC
RocketMinotaur V
Launch siteWallops Pad 0B
ContractorOrbital
End of mission
DisposalDeorbited
Decay dateApril 18, 2014 (2014-04-19), ~04:30 UTC
Orbital parameters
Reference systemSelenocentric
Periselene altitude25–50 km (16–31 mi)
Aposelene altitude60–80 km (37–50 mi)
Inclination157 degrees
Period111.5 to 116.5 minutes
EpochPlanned (science phase)
Moon orbiter
Orbital insertionOctober 6, 2013, 10:57 UTC

Logotype of the mission  
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