The Tianma 13m VGOS Radio Telescope, serves as China's observational test facility for international reference frame and Earth Orientation Parameter (EOP) services.

Since its completion, the telescope has continuously participated in observations conducted by the International VLBI Service for Geodesy and Astrometry (IVS) VGOS network. Its activities include international VGOS technology research and development, routine observations for reference frames and EOP determination. In addition, the telescope conducts weekly intensive UT1 observations and X/Ka-band observations for celestial reference frame catalog development.