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Mars Polar Lander

retired
Science ExplorationinterplanetaryCOSPAR 1999-001ALaunched 1/3/1999
Admin Edit
Mission & Launch
Launch Mission
Mars Polar Lander Mission
Launch Vehicle
Delta 7425-9.5
Launch Date
1/3/1999
Last Contact
12/3/1999
Orbit & Mass
Orbit Class
interplanetary
Altitude
-42,131 km
Inclination
28.43 deg
Dry Mass
290 kg
Total Mass
575 kg
Payload Classification
Mission Type
Science Exploration
Payload Category
PLAN
Payload Class
C
Organizations
Operator
NASA Jet Propulsion Laboratory
Manufacturer
Lockheed Martin
Registry
COSPAR ID
1999-001A
UN Registration
ST/SG/SER.E/360
Track
Mentions
1
All verified mentions of this spacecraft in source documents.
0.0-5.0
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The Discovery program's risk tolerance diminished following the failure of the Mars Climate Orbiter and Mars Polar Lander missions in 1999.

GovernanceGeneralValue 2.5Feb 5, 2024Review: NASA’s Discovery Program