Piggybacking on the Tiangong-2 launch will be Banxing-2, a technology development satellite made by the Shanghai Academy of Spaceflight Technology (SAST).
Armed with 25 megapixel optical cameras, the small satellite will orbit close to and snap Tiangong-2 and the visiting crewed Shenzhou-11 spacecraft.
It will photograph Tiangong 2 in orbit and will monitor space debris. It features an Ammonia based propulsion system. The satellite features 25
Megapixel high-resolution full-frame visible light camera and fisheye cameras.
Mission details:
BanXing 2 was deployed on 22 October 2016 and will remain in formation with the station to image the complex.