Lunar Prospector

Detected polar hydrogen; deliberate south-pole impact experiment.

Coordinates: -87.7, 42.1 (positive-east)
Era: B (1990-2019)
Parent mission: Lunar Prospector
Role: spacecraft bus
Operator: NASA
Nation: USA
Launched (UTC): 1998-01-07
Reached Moon (UTC): 1998-01-11 orbit / 1999-07-31 impact
Event type: orbiter/impactor
Outcome: success
Site: Shoemaker crater, south pole
Coordinate note: contested: coords primary in one tier, not_found_yet in other
Left on surface: ashes of Eugene Shoemaker
Returned material: none
Current status: impacted
Operational status (derived): inactive
Source grade: primary