Modified Thermocatalytic Low Thruster

Purpose:
Spacecraft orientation, attitude control, and station keeping.
Year of release: 2009
Guaranteed service life (years): 10.5
Estimated production / delivery time (months): 10
Flight qualification of the product: Yes
Brief history of flight qualification:
As part of: S/C of Cosmos series; Luch series (launched on 11.12.11, 03.11.12, 28.04.14, 28.09.14); Yamal-401 S/C (launched on 14.12.14); S/C of Express series (launched on 26.12.13, 16.03.14, 21.10.14, 14.09.15); S/C of KazSat-3 series (launched on 28.04.14).
Possibility to adapt the product to customer requirements: Yes


Parameter Value
Thrust (0.548 … 0.096)/ (0.113 … 0.096) N
Propellant inlet pressure (880..200)/ (187..168) kPa
Specific impulse in a continuous mode of operation (216..206) s
Specific impulse in a pulse mode of operation (176..200) s
Life in terms of propellant throughput, kg 20(35)/20
Life in terms of number of cycles 80000 (150000) cycles
Power consumption in the preparation mode and in the instant readiness mode (3.3 … 3.9) W
Power consumption in the forced preparation mode (for 3.5 min, up to 5 times) (24.4 … 37.5) W
Overall dimensions 112х70х38 mm
Mass 0.2 kg

Description

Propellant - hydrazine. The main thruster component parts are: a decomposition chamber with a catalyst element and a nozzle, a propellant injection unit, two small-size solenoid valves that supply propellant to the thruster, and a pressure signaling indicator
... Propellant - hydrazine. The main thruster component parts are: a decomposition chamber with a catalyst element and a nozzle, a propellant injection unit, two small-size solenoid valves that supply propellant to the thruster, and a pressure signaling indicator that monitors the fact that the thruster has been started up. A resistive heater and MLI installed on the thruster chamber ensure the required thermal mode of the thruster. The thruster also has a mounting plate that joins the thruster elements.
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Remark

Manufacturing lead time is given without taking into account the time needed to procure materials (4 months) and procured parts and components (6 months).

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