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![]() by Karin Valentine for ASU news Tempe AZ (SPX) Feb 12, 2021
NASA's Mars 2020 Perseverance rover will land on Mars Feb. 18, 2021. Onboard the rover is the ASU-led mast-mounted camera system "Mastcam-Z," which can zoom from wide angle to telephoto, take 3D images and videos, and take photos in up to 11 unique colors. ASU will hold a live landing watch party on Feb. 18 beginning at 11:30 a.m. Arizona time (MST) with Mastcam-Z principal investigator Jim Bell, Mastcam-Z ground data system lead Ernest Cisneros and other members of the ASU team, hosted by School of Earth and Space Exploration Director Meenakshi Wadhwa. This event is free and open to the public. The event includes the NASA broadcast of the landing live on NASA TV from Mission Control beginning at 12:15 p.m. Arizona time (MST). Perseverance is the most sophisticated rover NASA has ever sent to the red planet. It will collect carefully selected and documented rock and sediment samples for future return to Earth, search for signs of ancient microbial life, characterize the planet's geology and climate, and pave the way for human exploration beyond the moon. Perseverance will touch down on Mars at approximately 1:55 p.m. Arizona time (MST)/3:55 p.m. EST. During landing, the rover plunges through the thin Martian atmosphere, with the heat shield first, at a speed of over 12,000 mph (about 20,000 kph). A parachute and powered descent slow the rover down to about 2 mph (three-fourths of a meter per second). A large sky crane then lowers the rover on three bridle cords to land softly on six wheels. "The so-called 'Seven Minutes of Terror' that the rover has to go through to land safely on Mars is both exciting and, of course, scary," explained Bell, who is a professor and planetary scientist at ASU's School of Earth and Space Exploration. "But the system has been designed by some of the best engineers in the world, is based on the successful landing system used for the Curiosity rover back in 2012, and has been tested as much as possible back here on Earth." The rover's new home is Jezero Crater, a large impact crater about 28 miles (45 kilometers) wide just north of the Martian equator. Jezero once contained a lake, which scientists think is one of the most ideal places to find evidence of ancient microbial life. The main question Perseverance is trying to answer is: Was there ever ancient life on Mars? To answer that question, the rover will collect and store the most compelling rock and soil samples for return to Earth by a future mission. Once on Earth, scientists can use a variety of sophisticated instruments, many of them too large and bulky to transport to Mars, to help answer this question.
About Mastcam-Z The two cameras are mounted on the Mars 2020 rover mast at the eye level of a 6-foot-6-inches tall person. They are separated by 9.5 inches to provide stereo vision and they will produce images of color quality similar to that of a consumer digital HD camera (2 megapixels). Images from Mastcam-Z could be available in the week following landing (after the rover's mast is successfully deployed and the cameras complete their initial checkout), on the NASA and JPL Mars 2020 websites and on the Mastcam-Z Mars Images webpage. "We're super excited about sharing the raw images with the world," Bell said. "And we look forward to providing processed and calibrated Mastcam-Z images and mosaics as soon after landing as we possibly can." The cameras are designed to help other Mars 2020 experiments on the rover by looking at the whole landscape and identifying rocks and soil (regolith) that deserve a closer look by other instruments. They will also spot important samples for the rover to core and cache on the surface of Mars, for eventual return (by a future mission) to Earth. Bell leads the Mastcam-Z team, which includes dozens of scientists, engineers, operations specialists, managers and students at ASU and other universities, companies and government labs around the world. The team includes deputy principal investigator Justin Maki of NASA's Jet Propulsion Laboratory; the Planetary Society, which serves as the instrument's education and public outreach partner; and Malin Space Science Systems, Inc., which is the prime subcontractor for instrument development and uplink operations.
![]() ![]() Perseverance in testing helps assure a safe landing on Mars Edwards AFB CA (SPX) Feb 09, 2021 After a nearly seven-month journey to Mars, NASA's Perseverance rover is slated to land at the Red Planet's Jezero Crater Feb.18, 2021, a rugged expanse chosen for its scientific research and sample collection possibilities. But the very features that make the site fascinating to scientists also make it a relatively dangerous place to land - a challenge that has motivated rigorous testing here on Earth for the lander vision system (LVS) that the rover will count on to safely touch down. "Jez ... read more
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