Mars Climate Imager Failure

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INTRODUCTION
In the year 1999, NASA lost its two major missions to Mars. Mars Climate Orbiter (MCO) and Mars Polar Lander (MPL) were part of a bigger project Mars Surveyor Program (MSP) that began in 1994. Mars Global Surveyor (MGS) was the first part of this project, launched in 1996 and ended in January 2007. This report discusses the Mars Polar Lander with two Deep Space 2 probes, on board with MPL, and the most probable causes that may have led to MPL failure.
BRIEF HISTORY
Mars Surveyor Program of NASA started in 1994, supposed to send spacecraft to the Red Planet every 26 months. The first spacecraft, MGS was a success, launched on November 7, 1996 and arriving on September 11, 1997. Before going silent in November 2006, it provided …show more content…

To study the surface environment, weather and geology, MPL carried the Mars Volatiles and Climate Surveyor (MVACS). MVACS was an integrated package consisting of surface stereo imager, a 2-meter robotic arm with a digging scoop, camera and temperature probe and a meteorology pack. MPL was supposed to dig into surface and collect a soil sample with its robotic arm and then heat them up and analyze for content of volatiles using a thermal and evolved gas analyzer. The meteorological package would have taken temperature and pressure reading from Martian morning until afternoon2. The Mars Descent Imager (MARDI) was designed to take pictures as MPL descends to the surface starting from heat-shield ejection until landing. It also carried a Russian-provided Lidar instrument and a small microphone from the Planetary Society. The task of Lidar instrument was to describe ice and hazes in the atmosphere. MPL had two radio systems, one in UHF band for communication with MCO, but this plan was cancelled after failure of MCO and second in X-band for direct communication with …show more content…

When cruise lander separates from cruise stage, then these microprobes would be released and have powered up themselves from lithium batteries. Probes were in aeroshell, which upon falling on the surface would be destroyed by the impact and probes would be released to surface almost 60 miles away from the Lander’s site. Then probes would be separated into two parts, one will remain on surface and other will be penetrate into the surface by as much as meter. These were connected by cable. The purpose of penetrator was to collect soil samples and heat them up to detect water vapor and measure soil conductivity. Then this data will be passed to aft-body (part of probe on surface) which would transmit this data to MGS and then to Earth. DS2 mission was 2 days with main objective to test new technologies for future projects as its landing was lightweight, launched with Lander, and it was the first penetrator sent to other

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