Separation Adapter Unit & Ride-ON

Highly-Reliable Separation System for Small Satellites

SAURON is a separation ring built for those small satellites that require a standard and reliable 15" interface to a launch vehicle.

For spacecraft up to 450 kilograms

SAURON offers an optimized mechanical design that allows attaching a spacecraft with the maximum mass supported by an ESPA adapter, making it the best separation system in terms of mass ratio.

With just 2.3 kilograms of mass and the use of redundant flight-proven motorized actuators, it offers low to no shock to the carried payload.

SAURON also allows customization on the separation velocity to meet customer's requirements on the precise deployment of payloads, making it ideal for critical LEO and interplanetary missions.

Highlighted Features

SAURON was designed and built with reliability as one of the driving factors and prepared for Low Earth Orbit and interplanetary missions:

  • It uses highly-reliable flight-proven motorized actuators
  • Exceeds the mass limit imposed by an ESPA ring, allowing payloads weighting more than 450 kilograms, the best in class
  • Provides up to 60 lines of harness between the payload and the launch vehicle side, withstanding up to 3A each
  • It has an ITAR/EAR Free design
  • Complies with the REACH regulation
  • Mechanical interface

    Total mass (without interface screws and harness)
    2.3 kg

    Ride-ON mass (flyaway)
    < 0.4 kg
    * Lightweight version available for spacecraft with mass below 200 kilograms.

    Rocket side ring interface
    24 x 1/4 inch bolts, according to 15 inch ESPA interface

    Payload side ring interface
    24 x 1/4 inch bolts, according to 15 inch ESPA interface

    Actuation response time
    < 250 ms

    Stack height
    30.8 mm

    Payload capacity
    450 kg (260 mm CG height from rocket plane)
    * See the maximum payload CG plot for your specific configuration.

    Unitary spring energy
    Customizable to user needs

    Separation velocity
    Customizable from 0.02 m/s to 0.4 m/s
    * The overall system mass can limit the maximum relative separation velocity.

    Shock output (as seen by the Payload)
    < 100 g's @ 1 kHz (Low shock)
    * Value obtained by analysis. The final results are pending and will be confirmed after further testing.

    Electrical Interface

    Actuator type
    Redundant space-grade DC motors

    Actuator voltage
    28V (typical)

    Release signal
    150 ms pulse with < 2 amps (typical)

    Release time
    150 ms max.

    Data / Power / Grounding interface
    15 pin, negative insertion force connector. Up to 3 A per pin
    * Up to 4 connectors can be added around the 15" interface. Typically they are used for grounding, power, and data separately.