1 Nms GEO Reaction Wheel
Sinclair Interplanetary (Rocket Lab)
Radiation-hardened version of the heritage 1 Nms wheel, built for GEO and other high-radiation orbits.
Typed specifications35 values
Discloses 6 of 10 fields engineers filter by in this category (category median 5).
- Mass
- 970 g datasheet p.1
- Envelope (L×W×H)
- 150 mm x 140 mm x 42 mm datasheet p.1
- Angular momentum storage
- 1 N·m·s Nominal · datasheet p.1 1 N·m·s as published, mode unspecified | 1 N·m·s nom.
- Max torque
- 100 mN·m ±, at 0.8 Nms, 28 V supply · datasheet p.1 50 mN·m at 1 Nms (at 28 V supply)
- Supply voltage
- 24–34 V Nominal · datasheet p.1 50 V max | 50 V max · maximum | 24–34 V nom.
- Power consumption
- 2.4 W @ 0.2 Nms, steady state · datasheet p.1 -29.1 W @ 1.0 Nms, -100 mNm regenerative braking | 46.7 W @ 1.0 Nms, +40 mNm | 15.1 W @ 1.0 Nms, steady state | 1.4 W 0.2 Nms, steady state, 28 V, vacuum +1
- Data interface
- RS-485 datasheet p.1 RS-485 redundant, galvanic isolation | CAN
- Operating temperature
- -40–70 °C datasheet p.1
- Radiation tolerance (TID)
- 20 krad min · datasheet p.1 60 krad min · > 60 krad, > 5 mm Al equivalent shield
- Peak power
- 43 W 1.0 Nms, +60 mNm torque, 28 V, vacuum · datasheet p.1
- Bearing type
- hybrid datasheet p.1 hybrid diamond coated hybrid ball bearings
- Random vibration
- 14 g RMS min · datasheet p.1 14 g RMS min · >14 gRMS
- Flight heritage
- First launch June 2016. datasheet p.1
- Satellite class
- GEO datasheet p.1
- Missions flown
- 52 datasheet p.1
- Drive electronics
- integrated built-in control CPU · datasheet p.1
- Control modes
- speed datasheet p.1 torque
- Indicative price
- 80 000 EUR each · datasheet p.1
Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.
As published by the supplier5 lines, in the manufacturer's own wording
- Angular momentum capacity
- 1 Nms
- Target orbit
- GEO / high-radiation orbits
- Radiation hardening
- Rad-hard parts, shielded enclosure, active deep-charging mitigation
- First flight deliveries
- Scheduled Q1 2020
- Control interface
- Digital serial bus, commandable speed/momentum/torque
About
Sinclair Interplanetary pioneered high-reliability vacuum-lubricated reaction wheels for picosatellites, nanosatellites and microsatellites, with a built-in digital processor commandable over a serial bus for speed, momentum or torque, plus digital telemetry on speed, temperature, voltage, current and other health parameters. The 1 Nms GEO Wheel is a hardened version of the heritage 1 Nms wheel, suitable for high orbits. It uses radiation-hardened parts, a shielded enclosure, and an active mechanism to mitigate deep charging of the rotor assembly, while power consumption is greatly reduced relative to the standard microsatellite wheel. First flight deliveries were scheduled for Q1 2020.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.