3U PLATFORM

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GOMSPACE 3U PLATFORM

The GomSpace 3U platform is a standardised platform provided with all the essentials needed to operate your payload. The platform has a very compact design, providing the best solution to keep launch costs as small as possible, but still providing enough volume for most small payloads. The GomSpace platform was first used on the GomSpace GOMX-3 mission and has since obtained extensive flight heritage.  


The GomSpace 3U platform is well suited for:

  • Technical demonstrations
  • Radio communications missions
  • Signal intelligence missions
  • Other missions with small payloads
     

The GomSpace 3U platform provides: electrical power management, deployable solar panels, ADCS, TMTC, OBC functionalities and S-band data links.
4 DOF cold gas propulsion, star tracker, and/or X-band datalink can be provided on request.

More information can be found in the GomSpace Platform White Paper.

 

3U PLATFORM

KEY FEATURES 3U
Bus Mass 3.5 kg
Max Payload Mass 1.5 kg
Payload Volume 1.5 U
Solar Array Orbit Average Power (OAP) (Orbit Dep)  4.9 - 22.3 W
Power Bus 3.3V and 5V up to 2A
Battery Capacity 38 Wh
Determination Error Sun/Eclipse 2° / 10°
Pointing Error Sun/Eclipse 2.5° / 10.5°
Max Slew Rate 1.5° / s
Position Knowledge (RMS) 3 m
Data Storage Up to 120 GB
Data Buses SpaceWire, CAN, RS422 and TTL level UART
TMTC Communication Uplink  /  Downlink: S-band
High Speed Link (HSL) Communication Uplink: S-band  /  Downlink: S-band
TMTC Data Downlink Up to 90 kbps
High Speed Link (HSL) Data Downlink (CCSDS Compatible) From 500 kbps to 6 Mbps ​​​​(S-band)
High Speed Link (HSL) Data Uplink (CCSDS Compatible) From 500 kbps to 6 Mbps ​​​​(S-band)
Propulsion (optional) 10 m/s
Security AES256 Encryption and Authentication
Design Lifetime 5 years in LEO

APPLICATIONS / REFERENCE MISSIONS

GOMX-3

3U satellite in collaboration with ESA
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Mission Overview:

Demonstrating advanced pointing while receiving both L-Band and ADS-B signals:

  • X-band downlink    
  • 2nd generation ADS-B receiver
  • Software defined radio techniques
  • Robust ADCS capability

    Launched from ISS in 2015


Bus Configuration

  • 3U Platform
  • Active 3-axis control
  • Software defined radios

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FACSAT-1

3U Nanosatellite for the Fuerza Aérea Colombian
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Mission Overview:

Demonstrating the technological capabilities to build and operate a nanosatellite:

  • Visual range imaging
  • Payload with 20 m/pixel resolution
  • UHF downlink
  • Robust ADCS capability

    Launched in 2018


Bus Configuration

  • 3U Platform
  • Active 3-axis control
  • NanoCam Imager

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OSIRIS

Nanosatellite Platform for German Aerospace Center
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Mission Overview:

Demonstrating compact optical communication payloads for small spacecrafts in a LEO orbit:

  • High data rate
  • Low power consumption
  • Compact systems design
  • No frequency spectrum regulation

    Launched 2021


Bus Configuration

  • 3U Platform accommodating the
    optical payload
  • High precision pointing
  • Camera

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