Guardian - Alpha

Guardian - Alpha
Name Guardian - Alpha
Type CubeSat
Units or mass 3U
Status not launched, expected in 2023
Organisation OrbAstro (Orbital Astronautics)
Institution Company
Entity Commercial
Nation UK
Manufacturer AIVT by OrbAstro (Orbital Astronautics)
Operator OrbAstro (Orbital Astronautics)
Launch brokerer Momentus

Demonstrate a variety of technologies including an UltraScale+ high-performance computer.


Demonstrate a variety of technologies including an UltraScale+ high-performance computer coupled with a constellation management system based on an artificial neural network, a novel electrical power system, a compact attitude determination and control system, and a new thermal management system.
After the in-orbit demonstration, OrbAstro plans to launch its own cluster of formation flying nanosatellites to test remaining technologies the firm is developing, before focusing on the needs of larger constellations. Included:

  • Ultrascale+ based OBC
  • Novel long-life EPS, 36Wh
  • Full ADCS with dual star-trackers and GPS
  • SDR S-band transceiver
  • Electric Propulsion
  • 3rd-party hosted payloads
  • Solar panels
  • Ultra-light aluminium-carbon chassis
  • COTS redundant UHF transceiver and solar panel are included to de-risk.
    They will also de-risk our Guardian satellites. Total satellite mass is 1.66kg (not including 3rd-party hosted payloads & COTS redundant systems).
    When the build-trigger was pulled, nuts/bolts to flight-qualified satellite shipped out the door: 5 days. There were some teething issues. Our aim for the Dec mission is 3 days. We are building batch-production capabilities with a lot of automation involved. More on that in a later post.
Sources [1] [2]
Photo Sources [1]
Keywords Propulsion

Last modified: 2023-01-06
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