ηDragonfly Bus

ηDragonfly Bus is a 50 kg nano-class satellite bus positioned between CubeSats and microsatellites.^[1][2] Dragonfly styles the product with the Greek eta character (η); EO-Atlas keeps etadragonfly as the URL-safe slug. It is distinct from Dragonfly's µDragonfly Bus.^[1]

The platform uses a CFRP honeycomb composite structure and is described as providing microsatellite-grade attitude-control and communications performance in a compact bus.^[1][2] The bus accommodates payloads up to 50 kg and is marketed for deploying multiple compact imaging satellites in a single launch.^[1]

Published specifications include 113-197 W solar-array peak power, 71-125 W orbit-average power, and up to 300 Wh of energy storage.^[2] Communications and pointing specifications include 2.6 Gbps peak X-band downlink, pointing stability below 0.005 deg/sec, pointing accuracy below 0.01 deg, and slew rate up to 12 deg/sec.^[2]

SatCatalog lists CANBus, RS422/RS485, GigE, LVDS, SpaceWire, and SerDes interfaces, a five-year design life, and qualification against ECSS and NASA vibration, thermal-vacuum, and radiation standards.^[2]