Gaofen 4 []
Official name GAOFEN 4
Alternative name Gaofen 4
Cospar ID 2015-083A
Norad ID 41194
Launch date 2015-12-28
Launch site XSC
Launch vehicle CZ-3B/G2
Country/Organization China
Type application Earth observation
RCS size LARGE
Decay date ON ORBIT
Period (min) 1436.11
Inclination (deg) 0.06
Perigee (km) 35774
Apogee (km) 35799
Eccentricity 0.000349293728081819
Mean motion (revs. per day) 1.00270870615761
Semi-Major axis (km) 42164.635
Raan (deg) 278.1895
Arg of perigee (deg) 256.5133
Shape Box + 2 Pan
Mass (kg) 4600
Height (m) 5
Width (m) 2.5
Depth (m) 2.5
Span (m^2) 30
Lifetime 8 years
Contractors CAST
Power 2 deployable solar arrays, batteries

Gaofen 4 (GF 4) is a geostationary earth observation satellite in the Gaofen series of Chinese civilian remote sensing satellites.

GF 4 features an visible light and infra-red staring optical imager with common optical system. The ground resolution for the visible light imager is 50 m and for the infra-red payload is 400 m. This payload allows the observation of China and the sourrounding areas with a high temporal resolution.

Gaofen 4 was launched in December 2015 on a CZ-3B/G2 rocket from China's Xichang space center and has been stationed at 105.5º East.

Satellite COSPAR Date LS Launch Vehicle Remarks
GAOFEN 4 2015-083A 2015-12-28 XSC CZ-3B/G2