generate questions: The BeiDou-2 system began offering services for the Asia-Pacific region in December 2012. At this time, the system could provide positioning data between longitude 55°E to 180°E and from latitude 55°S to 55°N.
When did the BeiDou-2 system start offering services? {sep_token} Where did the BeiDou-2 system start offering services in 2012? {sep_token} At the time when BeiDou-2 system began offering services, what was the positioning data the system was able to provide?