Ramses Mission: Planetary Defence Spacecraft Successfully Activated
ESA and JAXA have achieved a critical milestone in the Ramses planetary defence mission, successfully powering up the spacecraft to meet a strict 2029 Apophis intercept window.
# System Activation: Ramses Online
Operations Update — The European Space Agency (ESA) and the Japan Aerospace Exploration Agency (JAXA) have confirmed the successful first power-on of the Ramses planetary defence spacecraft. The procedure, executed by the mission's prime contractor, validates the core electronic integrity of a probe tasked with an urgent, time-sensitive intercept.
The Apophis Deadline
According to ESA, the development of Ramses (Rapid Apophis Mission for Space Safety) is governed by a rigid orbital launch window. The objective is to rendezvous with the asteroid 99942 Apophis as it passes within 32,000 kilometers of Earth in April 2029. This proximity—closer than many geostationary satellites—is a once-in-a-millennium event.
Mission Objectives
Ramses is designed to arrive at the asteroid before the flyby occurs. By shadowing the 375-meter-wide asteroid during its close approach, the spacecraft will monitor how Earth's gravitational pull alters the asteroid's physical characteristics, rotation, and orbit. Data gathered will be vital for future planetary defence strategies, providing insights into how to deflect similar near-Earth objects (NEOs).
Next Phases
With the initial switch-on complete, engineers are now proceeding with full-scale integration. The mission remains on a fast-track schedule to ensure it is positioned to meet the asteroid well ahead of the 2029 encounter. This milestone confirms that the spacecraft's basic systems are functional and ready for the intensive testing phase ahead.