CASSIOPE/e-POP Fact Sheet

Satellite Name	CASSIOPE. Also known as Swarm-Echo.
Satellite Number	39265
International Designator	13055A
Launch Date	September 29, 2013
Operations Funding	University of Alaska Fairbanks
Data Augmentation Funding Agencies	Canadian Space Agency, European Space Agency
Development Funding Partners	Industrial Technologies Office Canada (Technology Partnerships Canada program), Canadian Space Agency, MDA Corporation
Prime Contractor	MDA Corporation
Bus Type	Canadian SmallSAT Bus Prototype designed and built by Magellan Aerospace Winnipeg
Scientific Payload	e-POP
Commercial Payload	Cascade
Satellite Dimensions	Hexagonal, 180 cm across x 125 cm high
Satellite Mass	500 kg
Launch Vehicle	SpaceX Falcon 9, v1.1
Initial Orbit	325 x 1500 km, 80.99° inclination
Orbital Period	103 minutes (14 orbits per day)
Projected Lifetime	2 years
Science Instruments	VHF/UHF transmitter (CER), VLF/HF receiver (RRI), auroral imagers (2) (FAI), GPS receivers (5) (GAP), ion detector (IRM), electron detector (SEI), neutral particle detector (NMS), magnetometers (2) (MGF)
Orbit Average Power	Typically around 130 W, max 600 W
Power Source	Solar array of five solar panels
Attitude Control System	As of December 17, 2021: Spin-stabilized using torque rods (three of the four momentum wheels have failed, with the fourth turned off). At launch: 3-axis stabilized using magnetometers (2), coarse sun sensors (6), star sensors (2), momentum wheels (4), torque rods (3)
Bus Data Uplink	S-band, 4 Kbps
Bus Data Downlink	S-band, up to 4 Mbps
Cascade Data Uplink/Downlink	Ka-band, > 300 Mbps
e-POP Data Storage	Up to 1.5 GB/orbit