Ammonia Jet Propulsion System (APS)
Yuzhnoye Design Bureau
The Ammonia Jet Propulsion System (APS) developed by Yuzhnoye SDO is designed for correction of spacecraft injection errors in orbital period and maintenance of orbital period throughout active spacecraft lifetime. First deployed on the MicroSat-M scientific spacecraft, it uses ammonia as propellant in both hot (catalytic decomposition resistojet) and cold (direct gas expansion) operating modes […]
Typed specifications6 values
Discloses 3 of 11 fields engineers filter by in this category (category median 3).
- Mass
- 24 kg product page
- Thrust
- 49 mN product page 49 mN
- Propellant
- ammonia product page
- Supply voltage
- 24–34 V product page
- Power consumption
- 375 W 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 supplier10 lines, in the manufacturer's own wording
- Propellant
- Ammonia
- Number of engines
- 2
- Engine thrust
- 0.049 N
- Total thrust impulse (hot mode)
- 7,000 N*s
- Total thrust impulse (cold mode)
- 2,500 N*s
- Number of firings
- Up to 500
- Maximum firing duration
- 15 minutes
- Supply voltage
- 24 to 34 V
- Max power consumption (at 28V)
- 375 W
- Dry mass
- 24 kg
About
The Ammonia Jet Propulsion System (APS) developed by Yuzhnoye SDO is designed for correction of spacecraft injection errors in orbital period and maintenance of orbital period throughout active spacecraft lifetime. First deployed on the MicroSat-M scientific spacecraft, it uses ammonia as propellant in both hot (catalytic decomposition resistojet) and cold (direct gas expansion) operating modes with two engines. The system delivers 0.049 N thrust per engine with a total hot-mode impulse of 7,000 N·s (714 kgf·s) and cold-mode impulse of 2,500 N·s (255 kgf·s). It supports up to 500 firings with maximum firing durations of 15 minutes per firing. The complete system has a dry mass of 24 kg and operates on 24 to 34 V supply voltage. All qualification tests including climatic, mechanical, firing, and endurance testing have been completed.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.