NASA's Psyche spacecraft successfully performed a gravity-assist flyby of Mars in May, passing within 3,500 km of the planet to adjust its trajectory toward the asteroid 16 Psyche.
The encounter served as a critical in-flight calibration for the spacecraft's scientific instruments, confirming they are functioning exactly as designed.
NASA released a time-lapse video of the flyby, showcasing images captured by the spacecraft's multispectral imager.
The spacecraft is currently on schedule to reach the asteroid 16 Psyche in August 2029.
Scientific Instruments and Testing
Magnetometer: A dual-sensor gradiometer system mounted on a 2.15-meter boom. It successfully detected the intense magnetic activity in Mars' bow shock region. Its primary goal at the asteroid is to determine if the object contains a remnant magnetic field, which would indicate it is the core of a destroyed protoplanet.
Multispectral Imager: Captured detailed images of Martian features, including the Huygens crater and the southern polar ice cap. The test also verified the imager's ability to detect small, distant objects like the moons Phobos and Deimos, a capability required to search for potential moonlets around the asteroid 16 Psyche.
Mission Context
The Psyche mission aims to study the massive, metal-rich asteroid 16 Psyche, which accounts for approximately 1% of the total mass of the main asteroid belt.
While some theories suggest the asteroid is the exposed core of a protoplanet, recent research has introduced alternative hypotheses that the mission's data aims to resolve.
Following the successful Mars gravity assist, the mission team plans to resume sustained solar-electric propulsion thrusting later this year to continue the journey.