Official name YAOGAN 27
Alternative name Yaogan Weixing 27
Cospar ID 2015-040A
Norad ID 40878
Launch date 2015-08-27
Launch site TSC
Launch vehicle CZ-4C
Country/Organization China
Type application Earth observation
RCS size LARGE
Decay date ON ORBIT
Period (min) 109.42
Inclination (deg) 100.09
Perigee (km) 1193
Apogee (km) 1206
Eccentricity 0.00541892455189662
Mean motion (revs. per day) 13.1602997623835
Semi-Major axis (km) 7577.635
Raan (deg) 144.7961
Arg of perigee (deg) 32.9345
Shape Box + 2 Pan
Mass (kg) 1040
Height (m) 1.5
Width (m) 1.5
Depth (m) 1.5
Span (m^2) 5
Contractors SAST
Power 2 deployable solar arrays, batteries

The Yaogan 8 (Remote Sensing Satellite-8) government remote sensing satellite, likely also used as a military reconnaissance satellite, was launched by CZ-4C rocket from China's Taiyuan space center on 15. December 2009. It is the first of a new generation of optical reconnaissance satellites.

YG-8 was built by the Aerospace Shanghai Technical Institute of th China Aerospace Science and Technology Corp. The optical payload on YG-8 was developed by the Changchun Light Technology Institute.

A second satellite of this class, Yaogan 15, was successfully launched on 29 May 2012. The third satellite, Yaogan 19, followed on 20 November 2013. A fourth satellite, Yaogan 22, was launched 20 October 2014. The fifth satellite, Yaogan 27, was put into orbit on 27 August 2015.

Satellite COSPAR Date LS Launch Vehicle Remarks
YAOGAN 8 2009-072A 2009-12-15 TSC CZ-4C with XW 1
YAOGAN 15 2012-029A 2012-05-29 TSC CZ-4C
YAOGAN 19 2013-065A 2013-11-20 TSC CZ-4C
YAOGAN 22 2014-063A 2014-10-20 TSC CZ-4C
YAOGAN 27 2015-040A 2015-08-27 TSC CZ-4C