FENGYUN 1B

Satellite information

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Satellite Type and Status

PAYLOADIN ORBIT

Key statistics

Satellite FENGYUN 1B at a glance.

Uptime

12780

Days in orbit

Revolutions

≈ 14.0

Per day

Orbit

SSO

Sun Synchronous Orbit

Inclination

98.9

Latest

Satellite identification and parameters

Extended collection of information and parameters for FENGYUN 1B.

Object identification

Identified? True

Debris? False

Object name: FENGYUN 1B

International designator: 1990-081A

Object number (NORAD): 20788

Object ID (CCSDS): 20788

Country: PEOPLES REPUBLIC OF CHINA (PRC)

Current information (Y/N): Y

RCS size: LARGE

Orbital parameters

Period: 102.627 minutes

Inclination: 98.9371 deg

SMA: 7261.091 km

Apoapsis: 895.45 km

Periapsis: 870.461 km

RAAN: 220.6985 deg

Eccentricy: 0.00172077

Argument of periapsis: 67.4939 deg

Mean anomaly: 292.8048 deg

Mean motion: 14.03136664 rev/day

Mean motion (dot): -0.00000144 rev/day²

B* drag term: -0.000064758506 1/R_Earth

Two-line elements (TLE)

Creation date: Aug. 29, 2025, 2:15 a.m.

Reference frame: TEME

Reference center: EARTH

Epoch: Aug. 28, 2025, 10 p.m. UTC

TLE line 0: 0 FENGYUN 1B

TLE line 1: 1 20788U 90081A 25240.91699651 -.00000144 00000-0 -64759-4 0 9998

TLE line 2: 2 20788 98.9371 220.6985 0017208 67.4939 292.8048 14.03136664790566

Live tracking on map

Real-time ground track for satellite FENGYUN 1B.

In-orbit conjunctions

A list of the most updated potential collisions computed for object FENGYUN 1B.

Target	Orbit	TCA	Probability of collision	Miss distance	Type
METEOR 2-17 DEB	LEO	2025-04-12 13:07:33	0.0002194218	374.0 (m)	DEBRIS
NOAA 16 DEB	SSO	2025-01-13 17:49:10	0.0001337407	722.0 (m)	DEBRIS

Associated space launch

Chinese polar orbiting meteorological satellite

FENGYUN 1B was lifted into orbit during the mission ‘Long March 4A | Feng Yun 1B’, on board a Long March 4A space rocket.

The launch took place on Sept. 3, 1990, 12:53 a.m. from Launch Complex 7.

For more information about the launch, click the button.

Long March 4A | Feng Yun 1B

Agency: N/A

Status: Launch Successful

Launch date: Sept. 3, 1990, 12:53 a.m. UTC

Rocket: Long March 4A

Launch pad: Launch Complex 7

Location: Taiyuan Satellite Launch Center, People's Republic of China

...

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