Propellant….. nitrogen tetroxide + unsymmetrical dimethylhydrazine Propellant mass, kg ….. 10 Dry mass, kg ….. 4 LRTE characteristics: Sustainer LTRE (1 unit): Thrust, N….. 600 Pitch, yaw, roll LTRE (4 units): Thrust, N….. 10 Vacuum specific impulse of one LTRE, m/s ….. 3000 Total operating time, s ….. 40 Supply voltage, V….. 27 Drain current of each LTRE, A, not over….. 1 Start-up/cut-off time of each LTRE, ms, not over….. 7