If we assume that latency is the time between submitting a message to the Hiberband modem and receiving it in Mission Control (the Hiber cloud platform), then the maximum latency for devices deployed around the equator is approximately 16 hours. The closer to the poles, the shorter the latency will be.
Due to the polar sun-synchronous orbit of our satellites, each satellite will pass the poles 16 times per day (every 1.5 hours) and above the same location at the equator twice a day (every 12 hours). This means that with one satellite operational, the travel time of a message is as follows:
- A message is submitted to the Hiberband modem. The modem will await the next pass of the satellite, which can take up to 12 hours.
- The satellite has received the packet and will keep it in store until it can forward it to the ground station, this can take up to 4 hours.
- Once the ground station has received a packet, it will be almost immediately available through the Hiber back-end.