HARDWARE / PRODUCTAdded 15 Jul 2026

STAR-Water-micro — Water Resistojet for Microsatellites

OhmSpace
STAR-Water-micro — Water Resistojet for Microsatellites

High-thrust water resistojet propulsion for microsatellites in LEO mega-constellations — 75–150 mN thrust and 240 s Isp for collision avoidance, de-orbiting, and inclination changes.

Typed specifications3 values

Discloses 3 of 10 fields engineers filter by in this category (category median 3).

Thrust
75–150 mN
product page
Specific impulse
240 s
product page
Propellant
water
product page

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 supplier7 lines, in the manufacturer's own wording
Technology
High-temperature water resistojet
Target ISP
240 s
Propellant
Water (deionized/demineralized)
Power
Up to 500 W
Thrust range
75–150 mN
Target platform
Microsatellites
Applications
Collision avoidance, de-orbiting, inclination changes

About

The STAR-Water-micro is OhmSpace’s higher-power propulsion system targeting microsatellite platforms and LEO mega-constellation operators. It delivers 75–150 mN of thrust with a target specific impulse of 240 seconds using deionized or demineralized water as propellant, enabling rapid orbital maneuvers at up to 500 W input power. The system is designed to enable collision avoidance, de-orbiting to comply with space debris regulations, and inclination changes — all without requiring toxic propellants. Its use of water makes it a safe, non-toxic, and low-pressure alternative to hydrazine thrusters, simplifying ground handling and launch safety compliance.

Documentation

No public datasheet yet — request the datasheet / ICD from the supplier.

Source: ohm.space ↗

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