Calibration targets on the rover deck are provided by Spain’s University of Valladolid.Īrizona State University leads operations of the Mastcam-Z instrument, working in collaboration with Malin Space Science Systems in San Diego. The mast unit, including the microphone, was developed and built by several laboratories of the CNRS (French research center), ISAE-Supaéro, and French universities under the contracting authority of the Centre National d’Etudes Spatiales (the French space agency). That part of the instrument includes several spectrometers, control electronics, and software. SuperCam is led by the Los Alamos National Laboratory in New Mexico, where the instrument’s body unit was developed. JPL built Perseverance as well as Ingenuity and operates both of them. “In this particular case, the microphone and video let us observe the helicopter as if we are there, and additional information, such as the Doppler shift, confirms details of the flight path.” “This is an example of how the different payload instrument suites complement each other, resulting in information synergy,” said Soren Madsen, Perseverance payload development manager at NASA’s Jet Propulsion Laboratory in Southern California. Some frequencies were clipped to bring out the helicopter’s hum, which is loudest when the helicopter passes through the field of view of the camera. Scientists made the audio, which is recorded in mono, easier to hear by isolating the 84 hertz helicopter blade sound, reducing the frequencies below 80 hertz and above 90 hertz, and increasing the volume of the remaining signal. This recording will be a gold mine for our understanding of the Martian atmosphere.” We have been lucky to register the helicopter at such a distance. “We had carried out tests and simulations that told us the microphone would barely pick up the sounds of the helicopter, as the Mars atmosphere damps the sound propagation strongly. “This is a very good surprise,” said David Mimoun, a professor of planetary science at Institut Supérieur de l’Aéronautique et de l’Espace (ISAE-SUPAERO) in Toulouse, France, and science lead for the SuperCam Mars microphone. Credit: NASA/JPL-Caltech/LANL/CNES/CNRS/ISAE-Supaéro NASA’s Perseverance Mars rover used its SuperCam microphone to listen to the Ingenuity helicopter on April 30, 2021, as it flew on Mars for the fourth time. Listen closely, though, and the helicopter’s hum can be heard faintly above the sound of those winds.įor the first time, a spacecraft on another planet has recorded the sounds of a separate spacecraft. It is further obscured by Martian wind gusts during the initial moments of the flight. Even during flight, when the helicopter’s blades spin at 2,537 rpm, the sound is greatly muffled by the thin Martian atmosphere. With Perseverance parked 262 feet (80 meters) from the helicopter’s takeoff and landing spot, the rover mission wasn’t sure if the microphone would pick up any sound of the flight. The microphone can also record ambient noise, like the Martian wind. The instrument’s microphone records the sounds of those laser strikes, which provide information on the physical properties of the targets, such as their relative hardness. The laser zaps rocks from a distance, studying their vapor with a spectrometer to reveal their chemical composition. A new video combines footage of the solar-powered helicopter taken by Perseverance’s Mastcam-Z imager with audio from a microphone belonging to the rover’s SuperCam laser instrument. NASA’s Perseverance Mars rover used one of its two microphones to listen as the Ingenuity helicopter flew for the fourth time on April 30, 2021. Sounds of the Mars Helicopter’s whirring rotors add another new dimension to the historic project.įor the first time, a spacecraft on another planet has recorded the sounds of a separate spacecraft. Credit: NASA/JPL-Caltech/ASU/MSSS/LANL/CNES/CNRS/ISAE-SUPAERO During Ingenuity’s fourth flight, a microphone included with the SuperCam instrument aboard Perseverance captured the humming sound of the blades and the din of wind. On April 30, 2021, NASA’s Perseverance rover made history as the first spacecraft to record sounds from another spacecraft on another planet.
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