there are many orbiters on mars won't they crash as many other orbiter also share the same orbit??
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Answer:
Mars Climate Orbiter (MCO) was the second probe in NASA’s Mars Surveyor program, which also included the Mars Global Surveyor (launched in November 1996) and Mars Polar Lander (launched in January 1999).
Mars Climate Orbiter was designed to arrive at roughly the same time as Mars Polar Lander and to conduct simultaneous investigations of Mars’ atmosphere, climate and surface. Arrival in orbit was dated for Sept. 23, 1999. MCO would then reach its operational near-circular Sun-synchronous orbit at about 260 miles (421 kilometers) by Dec. 1, 1999.
The satellite was also designed to serve as a communications relay for the Mars Polar Lander. After the lander’s mission (lasting three months), MCO would have performed a two-year independent mission to monitor atmospheric dust and water vapor and take daily pictures of the planet’s surface to construct an evolutionary map of climatic changes.
- 1999: A disaster investigation board reports that NASA's Mars Climate Orbiter burned up in the Martian atmosphere because engineers failed to convert units from English to metric.