Kwangmyŏngsŏng 4 [KCTV]
Official name KMS 4
Alternative name Kwangmyongsong-4-ho
Cospar ID 2016-009A
Norad ID 41332
Launch date 2016-02-07
Launch site YUN
Launch vehicle Unha-3
Country/Organization North Korea
Type application Earth observation
Operator NADA
RCS size MEDIUM
Decay date 2023-06-30
Shape Box
Mass (kg) 100
Height (m) 0.8
Width (m) 0.6
Depth (m) 0.8
Span (m^2) 0.8
Contractors NADA
Equipment 2 cameras
Power 2 deployable fixed solar arrays, solar cells, batteries

Kwangmyŏngsŏng 4 (광명성 4) is a North Korean earth observation satellite built by the National Aerospace Development Administration (NADA).

Reportedly the satellite carries some earth observation equipment and has a weight of ~200 kg. Images from TV, allegedly of Kwangmyŏngsŏng 4, show a cubic body with two deployable unarticulated solar arrays and two camera apertures on the nadir side.

Kwangmyŏngsŏng 4 launched on 7 February 2016 on an Unha-3 rocket from the Sŏhae Satellite Center in Ch’ŏlsan County, North P’yŏngan Province. It entered a sun-synchronous orbit of 465 km × 501 km with an inclination of 97.5°. No signals have been detected from the satellites and ground observations show, that it was initially tumbling. An analysis by Bob Christy suggests a significant shortfall in 3rd stage performance of the Unha-3 (Kwangmyŏngsŏng) launch vehicle.

Satellite COSPAR Date LS Launch Vehicle Remarks
KMS 4 2016-009A 2016-02-07 YUN Unha-3