The first satellite, BeiDou-1A, was launched on October 31, 2000. The second satellite, <answer>BeiDou-1B</answer>, was successfully launched on December 21, 2000. The last operational satellite of the constellation, BeiDou-1C, was launched on May 25, 2003.
What was the second satellite for the BeiDou-1 system called?
BeiDou-1B