The Tianping-3 mission is described in Chinese state media reports as a single satellite. However, as noted by SAST, three discrete satellites were launched.
“The satellite is mainly used for ground radar equipment calibration and radar cross section (RCS) measurement,” Chinese state media reported. “It will provide support for ground optical equipment imaging experiments and low-orbit space environment detection and monitoring experiments, as well as offer services for atmospheric space environment measurement and orbit prediction model correction.”