µDragonfly Bus

Vendor profile

Overview

The Dragonfly Aerospace µDragonfly Bus is designed to provide stable and precise Earth-imaging capability across a range of spectra. The system has an automated Attitude and Orbit Control System (AOCS) including a Xenon electric propulsion unit. Communication is enabled via an X-band data downlink and S-band TMTC, and the bus includes various electrical interfaces for simple integration with a range of payloads.

Attitude and Orbit Control
• Pointing Control Stability → <0.0015°/sec (3-sigma)
• Pointing Control Accuracy → <0.01° (3-sigma)
• Slew Rate → Up to 4°/sec

Communications
• S-Band TMTC → 400 kbps down, 150 kbps up

• X-Band Data downlink → 2.5 Gbps (Peak)

Electrical Power System
• Solar Array Peak Power → 220 W
• Orbit Average Power (OAP) → 140 W

Electrical Interfaces
• TMTC → CANbus, RS422/RS485
• Data → LVDS / SpaceWire / SerDes

Payload
• Available Mass → Up to 100 kg
• Available Volume → Ø500 mm x 1000+ mm

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Overview

Name: µDragonfly Bus
Vendor: Dragonfly Aerospace
Subsystem: Bus and Platform
Component Type: SmallSat Platform
Form Factor: SmallSat
Heritage: N/A

Details

Class: 100 kg
Energy Storage: Up to 600 Wh
Lifetime: 5 Years
Payload available mass: Up to 70 kg

Vendor Details

Name: Dragonfly Aerospace
Website: https://dragonflyaerospace.com/
Founded: 2020
Summary: Dragonfly Aerospace envisions a future in which our small, high-performance imaging satellites and payloads enable large imaging constellations that provide persistent views of the Earth in a variety of spectrums, providing unprecedented business intelligence and improving people's lives all over the world. Dragonfly Aerospace satellites and payloads are built on a 25-year legacy of components and design principles that date back to the first South African microsatellite, SUNSAT, which was launched in 1999. Since South Africa's entry into the space race, members of our team have worked on every microsatellite space mission.