Together with REMS and TWINS, this is the third environmental station jointly developed by the Center for Astrobiology and the National Institute of Aeronautics and Astronautics, and is currently operating on this red planet.
Spanish musical instrument Mida,in Wanderer NASA’s Perseverance landed on Mars on February 18 and is now working.This environmental station is made by Astrobiology Center (CAB, CSIC-INTA) and National Institute of Aerospace Technology (INTA), Spain successfully sent it to the Red Planet.
mission Mars 2020Part of NASA’s “Mars Exploration Program” is to persevere in searching for signs of ancient life on Earth. To this end, it has scientific instruments and systems designed to characterize the geological and atmospheric environment of Mars and detect signs of past microbial life.
one of the Seven musical instruments On the boat is MEDA (Mars Environmental Dynamics Analyzer, Its English abbreviation).Its total weight is approximately 5.5 kg, including Seven sensors They will be used to measure the direction and speed of wind, soil and air temperature, relative humidity, atmospheric pressure, incident solar radiation in the range of ultraviolet, infrared and visible light, and the nature of dust. Suspension, in addition, it is also equipped with a camera that can photograph the sky and clouds of Mars.
The main goals of MEDA are Characteristics of the Martian atmosphere. Your data will help improve and perfect the Earth’s atmospheric model, which will help predict the weather, and will be of great value in preparing for future manned missions. They will also be used for in-depth study of the role of Martian dust on the surface and in the atmosphere of chemical processes that affect temperature and climate.
They will also be of great help in studying radiation from the sun and space, which can change any traces of previous life on Martian rocks. Finally, they will provide information on how the exchange of water vapor between the soil and the Martian atmosphere occurs.
MEDA is the third environmental station operated by CAB on Mars.The other two are Remus (Environmental Monitoring Station Wanderer) Full of curiosity, and twin (Temperature and wind sensors for InSight tasks) on the InSight platform. With them, Spain has become a milestone for the first country to establish a weather network on another planet: REMS in 2012, TWINS in 2018 and MEDA in 2021.
Image of the MEDA sensor located on the permanent mast. / NASA / JPL-Caltech.
MEDA commissioning after landing
After the successful landing at the Jezero Crater was confirmed at 9:55 pm on February 18 at Pacific Standard Time (PST), the startup procedure of all systems began.This February 20, 2:00 AM, Open MEDA to confirm that the system is safe and reliable: all sensors on the instrument are operating normally.
But still there The final key event For MEDA, before adequate preparation: the so-called “razor” wind sensor (due to its folded shape that protects itself from rocks during landing), must now be opened and extended to its final position.
As pointed out Jose Antonio Rodriguez ManfrediThe CAB researcher, the head of MEDA, the complexity of the incident stems from the fact that to carry out this deployment, “the internal device will hold the fixing screw, keeping it folded, and the spring will suddenly open it.”
“The entire sequence of events lasts less than a second and will generate a large amount of electrical charge that may damage the sensor. After the “Terror of the Second MEDA”, the Spanish instrument will be fully prepared for the exploration of persistence that will be carried out in the next few years. Contribute.” The researcher said.