O3b

O3b MEO

Rendering of O3b MEO satellite coverage areas and visibility around the equator.
Mission type	Internet access
Operator	SES Networks
Spacecraft properties
Manufacturer	Thales Alenia Space
Launch mass	700 kg
Start of mission
Launch date	25 June 2013 (UTC) (2013-06-25Z) (four) 10 July 2014 (UTC) (2014-07-10Z) (four) 18 December 2014 (UTC) (2014-12-18Z) (four) 9 March 2018 (UTC) (2018-03-09Z) (four) 4 April 2019 (UTC) (2019-04-04Z) (four)
Orbital parameters
Reference system	Geocentric orbit
Regime	Medium Earth orbit
Perigee altitude	8063 km
Period	287.9 minutes

O3b is a satellite constellation in Medium Earth orbit (MEO) owned and operated by SES, and designed to provide low-latency broadband connectivity to remote locations for mobile network operators and internet service providers, maritime, aviation, and government and defence. It is often referred to as O3b MEO to distinguish these satellites from SES's forthcoming O3b mPOWER constellation.^[1]

O3b originally stood for "other three billion", or the other three billion people at the time that did not have stable internet access, and the constellation was initially built, owned and operated by O3b Networks, which became a wholly owned subsidiary of SES in 2016^[2] and ownership and operation of the constellation passed to SES Networks, a division of SES. The O3b MEO constellation began offering service in March 2014.^[3]