The first satellite of the second-generation system, Compass-M1 was launched in 2007. It was followed by further nine satellites during 2009-2011, achieving functional regional coverage. A total of 16 satellites were launched during this phase.
2009-2011 మధ్య మరో 9 ఉపగ్రహాలను ప్రయోగించడం ద్వారా ఏం సాధించగలిగారు?
functional regional coverage