Escape and Plasma Acceleration and Dynamics Explorers (ESCAPADE) consists of two identical interplanetary Photon spacecraft developed by Rocket Lab. Both spacecraft are about the size of a mini-fridge and weigh no more than about 250 pounds (120 kilograms) excluding fuel.
ESCAPADE will study how Mars’ magnetosphere – the magnetized area of space around the planet – interacts with the solar wind, and the processes driving its atmospheric escape.
The twin ESCAPADE spacecraft will spend 11 months in interplanetary space before entering a highly elliptical orbit around Mars. They will spend six months gradually descending into the same nominal science orbit like pearls on a string, passing within 100 miles (160 kilometers) of the Martian surface at closest approach.
“This constellation of two satellites at Mars will answer big questions about the atmosphere and the solar wind in real time,” said Shannon Curry, project scientist for the mission at UC Berkeley.
“With simultaneous two-point observations, ESCAPADE will bring us the first ‘stereo’ picture of this highly dynamic environment,” Lillis added.
Using instruments to measure magnetic fields, ions, and electrons, the ESCAPADE spacecraft will analyze how Mars’ magnetic field guides particle flows around the planet; how energy and momentum are transported from the solar wind through Mars’ magnetosphere; and what processes control the flow of energy and matter into and out of the atmosphere.
“Our heliophysics decadal surveys” – the community-wide survey used to set NASA’s scientific objectives – “have identified the scientific need to study the space environments of other planets,” said Jared Leisner, ESCAPADE program scientist at NASA HQ. “By studying the same processes at different planets, we gain key insights into how they function both at Earth and at other planets beyond the solar system.”
ESCAPADE is part of the NASA Small Innovative Missions for Planetary Exploration program.
Courtesy of NASA. Photo courtesy of Rocket Lab.