HelioSwarm


Mission facts
In the News
Duration
12 month science mission accesses all plasma environments
Launch Readiness Date
No sooner than 05/18/2026
Flight System
One hub and 8 co-orbiting node spacecraft
Transfer Trajectory
Hub carries nodes to science orbit using LADEE and TESS heritage phasing loops and a lunar swingby
Science Orbit
P/2 lunar resonant orbit (2-week period) provides access to the pristine solar wind (apogee 60 RE) and robust data downlinks (perigee 17 RE)
Observatory Geometry
Carefully designed S/C separations in polyhedral and 3D
Communications
Hub-ground: S-band to DSN, Hub-node: S-band
Orbit Determination
Ground-based process uses heritage tools, DSN-hub tracking and hub-node relative ranging
Swarm Maintenance
Nodes perform small maneuvers to maintain relative motion and distances
Architectural Redundancy
Baseline science can be met with hub and 6 nodes
Videos
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