HJ 2E [CAST]
Official name HJ-2F
Alternative name Huan Jing 2F
Cospar ID 2023-116A
Norad ID 57519
Launch date 2023-08-08
Launch site TSC
Launch vehicle CZ-2C (3)
Country/Organization China
Type application Earth observation, radar
Operator CRESDA
RCS size LARGE
Decay date ON ORBIT
Period (min) 94.43
Inclination (deg) 97.39
Perigee (km) 489
Apogee (km) 494
Eccentricity 0.00508646998982706
Mean motion (revs. per day) 15.2493910833422
Semi-Major axis (km) 6869.635
Raan (deg) 136.0937
Arg of perigee (deg) 99.0717
Shape Box + 2 Pan
Mass (kg) 510
Height (m) 1.4
Width (m) 1
Depth (m) 1
Span (m^2) 4
Contractors DFH Satellite Co. Ltd of CAST
Equipment 5 m S-SAR
Configuration CAST968B Bus ?
Power 2 deployable solar arrays, batteries

HJ 2E and 2F (Huan Jing = Environment) satellites are the second generation of small chinese Earth observation satellites operated by the China Centre for Resources Satellite Data and Application (CRESDA). The satellite constellation is composed of a number of small satellites, the ground system, and the application system. It will provide all-weather (3 to 100 m meter) imagery.

These are S-Band SAR remote sensing satellites with high mobility, precision control and stability, and long lifespans.

Satellite COSPAR Date LS Launch Vehicle Remarks
HJ-2E 2022-132A 2022-10-12 TSC CZ-2C (3)
HJ-2F 2023-116A 2023-08-08 TSC CZ-2C (3)