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BlueWalker 1



Designation 44105 / 19018AD
Launch date 1 Apr 2019
Country of origin United States
Mission Technology
Perigee/Apogee 441/520 km
Inclination 97.5°
Period 94.1 min
Launch vehicle PSLV #48

Satellite to test IoT technologies from AST & Science (data relay), part of SpaceMobile.
6U cubesat
Was ejected in the wrong orbit (expected was 493 x 510 km)

The constellation to provide 4G/5G to existing terminal is planned to have 243 satellites in 16 orbital planes (53°) at 400 km altitude and use these frequency bands:
Gateways: downlink: 37.5-42.5 GHz; uplink: 45.5-47.0, 47.2-50.2, 50.4-51.4 GHz
User terminals: downlink: 617-960, 1930-1990, 2110-2180, 2350-2360 MHz, uplink 663-915, 1710-1780, 1580-1910, 2305-2320 MHz
To use a 64.38 m2 (693 square foot) phased array antenna

End of life

Decay 29 Nov 2023

External resources


n2yo.com tracking

Technical data


Prime contractor NanoAvionics
Platform Multi-Purpose 6U
Mass at launch 10
Dry mass  
Solar array  
Stabilization active
DC power  
Design lifetime  

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