Mars Polar Lander Mars Volatiles and Climate Surveyor (MVACS) Lidar and Mars Microphone Mars Descent Imager (MARDI) Deep Space 2 Microprobes Deep Space 2 Microprobes Jet Propulsion Laboratory NASA Images, Images, Images Current Mission Status & News What We Hope To Learn Our Mission Mars Exploration Comments Or Questions? To Find Your Way Around Mars Polar Lander Mars Polar Lander mplnav.jpg

October 19, 1998

John McNamee
Mars Surveyor 98 Project Manager

Mars Climate Orbiter: Launch -52 days

Pyro Initiation Unit (PIU) aliveness testing was conducted and an anomaly discovered when operating side A of the orbiter PIU ATLO Test Unit (ATU) is being investigated. This anomaly is evident only on the Assembly, Test and Launch (ATLO) test unit and not on the flight units and will not delay powered on testing of the orbiter. A full investigation will be conducted when the ATU is replaced by the flight PIU after diode rework on October 28. The flight PIU was examined and 19 cracked diodes and 180 coating defects were discovered (out of approximately 200 total diodes).

Mars Polar Lander: Launch -76 Days

Radio frequency testing af the landed and direct links was completed. Flight PIU electrical mate was completed and electrical checkout is in process (with no anomalies as described under the orbiter report) with completion scheduled for tomorrow morning. Science walkdowns prior to closeout are in process.

Time Lapse Movie

Mars Climate Orbiter Spacecraft At Kennedy Space Center
October 19, 1998

Mars Climate Orbiter
MPEG Movie - 2.7 MB

Need help in running animations? Look here for information on how to setup your browser for animations.

Home Mars Polar Lander Deep Space 2 Microprobes Mars Climate Orbiter
Welcome Mailing List Links Credits

For questions or comments on this website please refer to our list of contacts.