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NASA’s Perseverance Rover Captures Video and Audio of Fourth Ingenuity Flight

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For the first time, a spacecraft on another planet has recorded the sounds of a separate spacecraft. 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. 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.

The laser zaps rocks from a distance, studying their vapor with a spectrometer to reveal their chemical composition. 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 microphone can also record ambient noise, like the Martian wind.

With the 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. Even during flight, when the helicopter’s blades spin at 2,537 rpm, the sound is greatly muffled by the thin Martian atmosphere. It is further obscured by Martian wind gusts during the initial moments of the flight.

Footage captured from Preserverance Rover.

“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. “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. We have been lucky to register the helicopter at such a distance. This recording will be a gold mine for our understanding of the Martian atmosphere.”

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. 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.

“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 (JPL) in Southern California. 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.”

SuperCam is led by the Los Alamos National Laboratory in New Mexico, where the instrument’s body unit was developed. That part of the instrument includes several spectrometers, control electronics, and software. 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). Calibration targets on the rover deck are provided by Spain’s University of Valladolid.

Arizona State University leads operations of the Mastcam-Z instrument, working in collaboration with Malin Space Science Systems in San Diego. The Mastcam-Z team includes dozens of scientists, engineers, operations specialists, managers, and students from a variety of institutions.

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President casts ballot in parliamentary election

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President Dr. Mohamed Muizzu has cast his vote in the parliamentary elections.

President Muizzu cast his vote at a polling station based in Thaajuddeen School. Following his vote, he urged the public to exercise their right by voting promptly.

The Election Commission of the Maldives (ECM) revealed that the voting will take place between 0800hrs to 1730hrs, highlighting that voting commenced promptly at nearly all polling stations on time.

In the current parliamentary elections, the ruling party People’s National Congress (PNC) led by President Muizzu has nominated candidates to contest in 90 constituencies.

Source(s): PsmNews

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ECM urges to vote independently and promptly

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President of the Election Commission of the Maldives (ECM) Fuwad Thowfeeq has urged the populace to promptly cast their ballot.

In a message to media commemorating voting day, Fuwad Thowfeeq urged the voting population to cast votes independently and promptly. Voting for the 20th parliamentary election began at 0800hrs on April 21.

Additionally, ballot boxes are placed in all residential islands, 34 resorts, correctional facilities, industrial islands and as well as 3 countries abroad. ECM confirmed a total of 602 ballot boxes are placed.

Moreover, Fuwad reiterated that the electoral body is fully equipped for the preparation of the polling stations, highlighting that all administrative work necessary has been initiated. The ECM has initiated a reduction in the number of voters per polling station. Therefore, 500 individuals can now voter per box.

Furthermore, efforts are currently being made by the Maldives Police Service (MPS) to guarantee a smooth and seamless elections. Subsequently, MPS raised its alert level by launching a special operation named “Operation Blue Tide”. Simultaneously, it resolved to use ‘body worn cameras’ to ensure the utmost security throughout the election process.

Commander of Maldives Police Service Abdulla Shareef underscored that police personnel have been stationed at various polling stations, ensuring its safety. It further urged the public to cooperate with the temporary amendments made to the traffic guidelines. Meanwhile, transportation of heavy vehicles will be prohibited following the parliamentary elections.

Additionally, individuals with special needs, pregnant women, the elderly, and those working in uniformed services will be awarded priority access at polling stations, exempting them from queues. Concurrently, it stressed the importance of carrying official documents when voting.

The counting of votes begins 30 minutes after the polling place closes.

Source(s): PsmNews

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Voting begins for the parliamentary election 2024

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Voting has begun for the 2024 parliamentary election.

Polling stations opened in Male’ and the atolls at 0800hrs and will close at 1730hrs, as per the decision of the Election Commission of the Maldives (ECM). Voters began queuing up at the polling stations at around 0730hrs and the security envelopes were opened in the presence of the first two voters at the polling stations.

A total of 602 ballot boxes have been set up in the Maldives and three other countries for the parliamentary election. Polling stations are also open in 34 resorts, prisons and other industrial islands. The countries in which ballot boxes are placed for voting are Trivandrum in India (0830hrs to 1800hrs), Colombo in Sri Lanka (0830hrs to 1800hrs) and Kuala Lumpur in Malaysia (1100hrs to 2030hrs).

ECM has made several arrangements to ensure maximum convenience to all during the election process. As such, each ballot box is open for 500 individuals. Additionally, ECM affirmed that the allocated time for voting will not be extended under any circumstances, hence urging residents to cast their votes promptly.

With a total of 93 various constituencies, the eligible voting population for the election is 284،663, including 145،302 male and 139،361 female voters. While the current 19th parliament consists of members representing 87 districts, decisions have been made such that the forthcoming 20th parliament will encompass an additional six districts. The additional six constituencies are as follows: two chairs for Male’ City, one chair for Addu City, one chair for Maalhosmadulu Dhekunuburi (Baa Atoll), one chair for Male’ Atoll and one chair for Huvadhu Atholhu Uthuruburi (Gaafu Alif Atoll).

The current parliamentary term will conclude on May 30, 2025.

Source(s): PsmNews

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