Ziyuan () is a series of remote sensing satellites operated by the People's Republic of China. Several Ziyuan satellites are operated jointly with Brazil's National Institute for Space Research under the China–Brazil Earth Resources Satellite program.
Ziyuan satellites are based on the Phoenix-Eye-1 or Phoenix-Eye-2 satellite buses - the Phoenix-Eye-1 is used for CBERS missions while the Phoenix-Eye-2 is used for the remaining satellites. The Ziyuan-II series satellites are operated by the Chinese military. The Ziyuan-III series satellites are operated by the Ministry of Natural Resources.
Satellites Satellite COSPAR ID SATCAT Launch date Rocket Launch site Status Remarks Ziyuan I series Ziyuan I-01 (CBERS-1) 25940 14 October 1999, 03:15 UTC CZ-4B Taiyuan, LC-7 Retired 2003 Ziyuan I-02 (CBERS-2) 28057 21 October 2003, 03:16 UTC CZ-4B Taiyuan, LC-7 Retired 2007 Ziyuan I-02B (CBERS-2B) 32062 19 September 2007, 03:26 UTC CZ-4B Taiyuan, LC-7 Failed 2010 Ziyuan I-02C 38038 22 December 2011, 03:26 UTC CZ-4B Taiyuan, LC-9 Operational Ziyuan I-03 (CBERS-3) colspan=2 9 December 2013, 03:26 UTC CZ-4B Taiyuan, LC-9 Launch failure Ziyuan I-04 (CBERS-4) 40336 7 December 2014, 03:26 UTC CZ-4B Taiyuan, LC-9 Operational Ziyuan I-04B (CBERS-4B) 2018 CZ-4B Taiyuan On order Ziyuan I-02D 44528 12 September 2019, 03:26 UTC CZ-4B Taiyuan Launched Ziyuan I-04A (CBERS-4A) 44883 20 December 2019, 03:22 UTC CZ-4B Taiyuan LC-9 Launched Ziyuan I-02E 50465 26 December 2021, 03:11 UTC CZ-4C Taiyuan LC-9 Launched Ziyuan II series Ziyuan II-01 26481 1 September 2000, 03:25 UTC CZ-4B Taiyuan, LC-7 De-orbited 3 November 2016 Ziyuan II-02 27550 27 October 2002, 03:17 UTC CZ-4B Taiyuan, LC-7 De-orbited 22 January 2015 Ziyuan II-03 28470 6 November 2004, 03:10 UTC CZ-4B Taiyuan, LC-7 Presumed retired Ziyuan III series Ziyuan III-01 38046 9 January 2012, 03:17 UTC CZ-4B Taiyuan, LC-9 Operational Ziyuan III-02 41556 30 May 2016, 03:17 UTC CZ-4B Taiyuan, LC-9 Launched Ziyuan III-03 45939 25 July 2020, 03:13 UTC CZ-4B Taiyuan, LC-9 Ziyuan III-04 CZ-4B Taiyuan, LC-9
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