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Airbus space technology reaches Mars

Written by  Tuesday, 16 February 2021 11:58
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Madrid, Spain (SPX) Feb 17, 2021
When NASA's Perseverance rover lands on the surface of the Red Planet next Thursday, key Airbus technology will be on board: the MEDA meteorological station will provide scientists with valuable Mars weather data and the High Gain Antenna System will ensure a high-speed comms link with Earth for the duration of the MARS2020 mission. Perseverance will use seven scientific instruments to stu

When NASA's Perseverance rover lands on the surface of the Red Planet next Thursday, key Airbus technology will be on board: the MEDA meteorological station will provide scientists with valuable Mars weather data and the High Gain Antenna System will ensure a high-speed comms link with Earth for the duration of the MARS2020 mission.

Perseverance will use seven scientific instruments to study the Martian biological and geological environment, including the MEDA (Mars Environmental Dynamics Analyser) meteorological station, designed and built by Airbus.

The MEDA instrument will measure many environmental parameters using sensors distributed across the rover: wind speed and direction, relative humidity, atmospheric pressure, soil and air temperatures, solar radiation and also properties of suspended dust. These parameters will also be key when making the autonomous decision to release the Ingenuity helicopter on board the rover.

MEDA is the third Martian environmental station led by Airbus demonstrating its expertise in this field. The first was on board the Curiosity rover in 2012, known as REMS (Rover Environmental Monitoring Station), and the second on InSight in 2018, called TWINS (Temperature and Wind for InSight). Both were successful NASA / JPL missions.

All data from Perseverance's discoveries will be sent to Earth through the high gain antenna system (HGAS) also designed and built by Airbus, based on an X-band transmitting and receiving antenna that will allow high speed data communications. The antenna is based on microstrip technology, developed in-house. It is protected from dust, to maintain clean conditions and thermal stability.

The antenna will directly send scientific data generated by the different instruments and information on the health status of the rover, without the need for intermediate links (e.g. orbiters). In addition, the vehicle will receive daily instructions from Earth with the tasks of the day. As the antenna is steerable, it can send a "beam" of information pointing directly at the Earth without moving the vehicle, which contributes to energy savings.

The extreme thermal excursions on Mars required qualification of the antenna system at temperatures ranging from -135C to + 90C with exhaustive thermal fatigue tests. This will be Airbus' second HGAS antenna system on Mars, with the first still operating flawlessly on board Curiosity eight years later.


Related Links
Airbus Space
Mars News and Information at MarsDaily.com
Lunar Dreams and more

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