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ELSA-d Servicer (ELSA-d Chaser)

ELSA-d Servicer [Astroscale]

The ELSA-d (End-of-Life Service by Astroscale - demonstration) 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.

The Target and the Chaser will be attached for launch and deorbit, but while on-orbit, will be deployed in a series of three increasingly complex separation and capture manoeuvres using rendezvous and docking algorithms. A docking plate with optical markers will be attached to the Target, allowing the Chaser to identify and estimate attitude during the docking.

On 25 August 2021 the target was released for the first time and then recaptured using a magnetic mechanism.

Nation: Japan
Type / Application: Technology
Operator: Astroscale
Contractors: Astroscale
Equipment: Space Debris Monitor
Power: Solar cells, batteries
Mass: 175 kg
Satellite COSPAR Date LS Launch Vehicle Remarks
ELSA-d Servicer (ELSA-d Chaser) 2021-022N 22.03.2021 Ba LC-31/6 Soyuz-2-1a Fregat with CAS500 1, ELSA-d Client, GRUS 1B, ..., 1E, Najm 1, DMSat 1, UniSat 7, BCCSAT 1, FEES, DIY 1, SMOG 1, STECCO, SAMSON 1, 2, 3, Kepler 6, 7, NanoSatC-Br 2, KMSL, CANYVAL-C 1, 2, BeeSat 5, ..., 8, Hiber 3, CubeSX-HSE, CubeSX-Sirius-HSE, Orbicraft-Zorkiy, WildTrackCube-SIMBA, GRBAlpha, 3B5GSAT, LacunaSat 2b, ChallengeOne, KSU-Cubesat


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