µDRAGONFLY BUS

High-performance imaging satellite

µDRAGONFLY BUS Core Specifications

µDRAGONFLY BUS Technical Specifications

Attitude & Orbit control

Pointing control stability

< 0.005º/sec (3-sigma)

Pointing control accuracy

< 0.01º (3-sigma)

Slew rate

up to 4º/sec

Geolocation knowledge accuracy

< 65 m (3-sigma)

Control frequency

10 Hz

Fully automated AOCS

through target tracking

Xenon Electric Propulsion System

15 mN thrust, 1380s Isp

Communications

S-Band TMTC

400 kbps down, 150 kbps up

X-Band Data Downlink

1 Gbps

Electrical power system

Solar Array Peak Power

220 W (body mounted) / 440 W (deployed)

Orbit Average Power (OAP)

140 W (body mounted) / 280 W (deployed)

Peak power

1.2 kW

Bus Voltage

24.5 – 33.6 V (unregulated)

Payload

Available mass

up to 60 kg

Available volume

⌀ 500mm x 1000+ mm

Available OAP

90 W (body mounted) 230 W (deployed)

Electrical interfaces

TMTC

CANbus, RS422/RS485

Data

LVDS / SpaceWire / MGT

High Speed Data Recorder (HSDR)

4 TB

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