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SJ-6
SJ-6-2A SJ-6C
SJ-6-2A SJ-6C
Credit: Manufacturer Image
Chinese military surveillance satellite constellation. Each launch was said to consist of a primary satellite using the CAST968 bus and a subsatellite built by SAST Shanghai. Five pairs were launched from ?Taiyuan by the CZ-4B launch vehicle into 590 km, 97.7 deg inclination sun synchronous orbits from 2009. Reported to carry systems for optically tracking satellites in orbit. In 2013 SJ-15 was launched from Jiuquan, and SJ-16 from Taiyuan, in very similar but slightly different orbits. These may have been the successor system.

AKA: Shi Jian 6. Status: Operational 2004. First Launch: 2004-09-08. Last Launch: 2013-10-25. Number: 6 . Gross mass: 2,700 kg (5,900 lb).

Under cover of the SJ (Shijian) Chinese scientific research series, the government began launching pairs of satellites in 2006 that were believed to have a military ELINT mission.

The satellites were placed in sun-synchronous orbits at 600 km altitude. The second was separated about a minute after the first. The second pair was launched two years after the first. Chinese ELINT systems had been tested on earlier flights of the manned Shenzhou spacecraft's orbital module.


More at: SJ-6.

Family: Military naval signals reconnsat, SIGINT, Sun synchronous orbit, Surveillance, Technology. Country: China. Launch Vehicles: Chang Zheng 4B, Chang Zheng 4C. Launch Sites: Taiyuan, Taiyuan LC1. Agency: CAST. Bibliography: 2, 6, 13100, 13101, 13102.
Photo Gallery

Shi Jian 16Shi Jian 16
Credit: Manufacturer Image



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