The NASA Psyche spacecraft successfully completed its flyby of Mars on May 15, 2023, coming within approximately 2,864 miles (4,609 kilometers) of the planet. This maneuver utilized Mars’ gravity to gain speed and adjust the spacecraft’s orbital trajectory without needing onboard propellant. The mission is now set on a path toward the metal-rich asteroid Psyche, located in the main asteroid belt between Mars and Jupiter.
Navigational Boost from Mars Flyby
After the Mars encounter, NASA’s flight team analyzed radio signals to validate Psyche’s trajectory. The navigation lead, Don Han, reported a significant boost of 1,000 miles per hour, with an orbital angle shift of roughly 1 degree relative to the Sun. The spacecraft is anticipated to arrive at Psyche in the summer of 2029.
Calibration and Data Collection
Leading up to the flyby, all of Psyche’s instruments were activated for calibration, including imagers and spectrometers. This opportunity allowed the mission team to refine equipment in preparation for the asteroid encounter. During the approach, the spacecraft captured unique images of Mars appearing as a thin crescent, lit by sunlight reflecting off its surface.
- The crescent of Mars appeared unexpectedly bright due to sunlight scattering through its dusty atmosphere.
- Psyche’s imager collected thousands of pictures during the flyby, providing critical data for calibration.
Jim Bell, the instrument lead for Psyche’s imager, emphasized the importance of these images for both calibration and future image processing. The spacecraft will continue to gather data on Mars for the rest of the month as it moves further away.
Collaboration with Other Missions
Psyche’s mission benefited from complementary data collected by several other NASA missions, including the Mars Reconnaissance Orbiter and the Curiosity rover. These collaborative efforts enhanced the calibration process during the flyby.
- Other involved missions:
- 2001 Mars Odyssey orbiter
- ESA’s Mars Express
- ESA’s ExoMars Trace Gas Orbiter
Additionally, early magnetometer measurements may have detected Mars’ bow shock as the spacecraft navigated its vicinity. The gamma-ray and neutron spectrometer also gathered calibration data by comparing new readings with existing Martian data.
Future Mission Goals
Following its Mars flyby, the Psyche spacecraft will resume using its solar-electric propulsion system to voyage to the asteroid belt. Upon arrival in August 2029, Psyche will enter an orbit around the asteroid, which measures approximately 173 miles (280 kilometers) at its widest. This mission aims to map the asteroid and collect scientific data that could reveal insights into the core of early planets like Earth.
Principal investigator Lindy Elkins-Tanton from the University of California, Berkeley, expressed excitement about the successful flyby. She stated how crucial this gravitational slingshot was for progressing further into the solar system.
Mission Overview
The Psyche mission is part of NASA’s Discovery Program and is managed by Arizona State University (ASU). The Jet Propulsion Laboratory (JPL) in Pasadena oversees overall operations, and Intuitive Machines from Palo Alto provided the spacecraft’s propulsion system.
Contact and Further Information
For more details about NASA’s Psyche mission, visit El-Balad. Media contacts include:
- Ian J. O’Neill, JPL: 818-354-2649
- Karen Fox, NASA Headquarters: 240-285-5155
- Molly Wasser, NASA Headquarters: 240-419-1732
