All-sky Space Object Monitoring System 

The main objectives of All-sky Space Object Monitoring System are the surveillance of large-sized artificial space objects with the possibility of falling and the detection and the trajectory analysis of falling meteors. The system consists of two sub-systems, Space Object Sky Monitoring System (SOSMS) and Meteorite Monitoring System (MMS). 

SOSMS monitors trajectories of large satellites and detects falling signs from their orbital changes. It is planned to complete 5 systems in 5 years and install them in five sites of OWL-Net considering their global distribution. MMS detects falling meteors and generates information for estimation of their falling trajectory and crash areas. More than 20 systems are supposed to be installed nationwide at 50-100km intervals.

 

Space Object Sky Monitoring System Specification 

Unit/Parameter	Value/Type
Optical Sensor	20 millions pixels CMOS Sensor
Sensor Lens	85mm / F1.4 / F-mount
Sensor Frame	5120 X 3840 / 30fps
Limit Magnitude	10 mag (1 sec : exposure time)
Data Generation Cycle	> 1 per second
Time Precision	< 10 ms

Meteorite Monitoring System Specification 

Unit/Parameter	Value/Type
Optical Sensor	48 millions pixels (Dual 24 millions) APS-C CMOS Sensor
Sensor Lens	8“ Dome Lens + 8mm Wide Lens
Angle of View	> 150 degree
Detection Time Offset	< 33 ms
Digital Chopper : Open State Transmittance	> 37.5 %
Digital Chopper : Contrast	> 1800:1
Digital Chopper : Operation Time	open time : < 1.8 ms close time : < 50 us
Digital Chopper : Frequency	> 200 Hz
Controller Time Precision	< 10 us