On 2013 February 4, Dr. Vasiliy Yurasov and Dr. Andrey Nazarenko, working with the Institute for Precision Instrument Engineering (IPIE) in Moscow, reported to CSSI a significant change in the orbit for their BLITS satellite. BLITS is tracked to high precision by the International Laser Ranging Service (ILRS), and IPIE had detected a sudden decrease of 120 m in the semi-major axis of its orbit and a change in its spin velocity and attitude. Prior to the event, BLITS had a spin axis perpendicular to the orbit plane and had a stable spin period of 5.6 sec. Read more