END OF LIFE SERVICES
The End-of- Life Service by Astroscale(ELSA) program is a spacecraft retrieval service for satellite operators. The ELSA-d is the first project and its mission is to demonstrate the core technologies to be used for the ELSA program.
ELSA-d is comprised of “Chaser” and “Target.” Chaser is equipped with optical sensing instruments and a redundant capture mechanism, and Target is with a docking plate (DP) as it functions as a “rescue package.” The DP is to enable Chaser to secure Target and provides optical references (or “markers”) for Chaser to identify and estimate the attitude of Target.
Chaser: 600mm × 600mm × 1000mm
Target: 12U-18U Cubesat Equivalent
Star tracker, sun sensor, magnetic sensor, gyro sensor, GPS, accelerometer
Sun sensor, magnetic sen-sor, gyro sensor, GPS, accelerometer
Chaser and Target: Magnetic Torquer and Reaction Wheel
Chaser: S+X bands
Chaser: Green Propellant System
Radiometric Ranging Sensors
THE ELSA-d MISSION
The flight operation of ELSA-d mission is planned to be in the first half of 2019. It will demonstrate the company’s capability to conduct EOL service. Once “Chaser” finds “Target” (simulated space debris), it will de-orbit from the congested LEO region and burn up upon atmospheric reentry.