Facilities

Satellite Control Centers & Teleports

JSAT satellites in geo-stationary orbit are controlled and monitored 24/7 by our satellite control centers in Japan. From state-of-the-art facilities, we ensure reliable and fully redundant satellite operations.

Satellite Operations:

- 24/7 Monitoring and control of operational status and orbital location of the satellites.

Network Monitoring:

- 24/7 Spectrum monitoring of satellite transponders to ensure stable communications links.

Role of Satellite Control Centers

Our satellite control centers perform two primary functions, “Satellite Control Operations” and “Network Operations”. We conduct round-the-clock monitoring and control of JSAT satellites to secure reliable services.

1. Satellite Control Operations

Satellite control operations include monitoring of our fleet’s operational status and controlling of each satellite’s orbital position and attitude. The temperature, voltage and current in all parts of the spacecraft are carefully monitored to ensure optimal performance. All geo-stationary satellites tend to drift slightly due to the gravitational pull of the sun and the moon as well as other sources. In order to maintain a satellite at its intended location, we carry out constant monitoring, commonly known as “ranging” (a measurement of distance from the earth to satellite). When the satellite drifts near our preset limits, the control center will commence “station-keeping maneuvers“ (by firing the small thrusters on board of the satellite) to return the spacecraft back to its intended location.

Satellite Control Operations

2. Network Operations

Network operations provide 24/7 customer support by monitoring the status of our satellite networks and conducting Uplink Access Test (UAT) in conjunction with customers for satellite access. We also provide trouble-shooting support and implement thorough interference management in order to maintain the highest quality in our satellite services.

Network Operations