China Aerospace Science & Technology Corporation (CASC) launched the Queqiao-2 relay satellite onboard a Long March 8 (ChanZheng-8 Y3 S) rocket. The satellite will travel to a highly elliptical, frozen lunar orbit at an inclination of 55 degrees. Once in orbit, it will help support lunar missions beginning with Chang’e-6. In addition to the primary payload, there will be two small, rideshare satellites called Tiandu-1 and Tiandu-2.