Super Tracking Theodelite-1 (STT-1) is a precision instrument measuring trajectory and attitude of flying targets using a laser, an infrared and a video tracking system, and a laser ranging system. The tracking accuracy is better than 60 arc seconds. The real time angular measuring accuracy is better than 15 arc seconds. The ranging accuracy is 1 m. The instrument can record the target picture on film with a high speed synchronous camera. The overall arrangement, tracking systems, and measuring results are described.
Jiaguang Ma, Jiaguang Ma,
"Tracking and measuring technology of a tracking theodolite", Proc. SPIE 1979, 1992 International Conference on Lasers and Optoelectronics, (11 May 1993); doi: 10.1117/12.144080; https://doi.org/10.1117/12.144080