SJ-5

Satellite information

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Satellite Type and Status

PAYLOADIN ORBIT

Key statistics

Satellite SJ-5 at a glance.

Uptime

9549

Days in orbit

Revolutions

≈ 14.1

Per day

Orbit

SSO

Sun Synchronous Orbit

Inclination

98.8

Latest

Satellite identification and parameters

Extended collection of information and parameters for SJ-5.

Object identification

Identified? True

Debris? False

Object name: SJ-5

International designator: 1999-025B

Object number (NORAD): 25731

Object ID (CCSDS): 25731

Country: PEOPLES REPUBLIC OF CHINA (PRC)

Current information (Y/N): Y

RCS size: LARGE

Orbital parameters

Period: 101.921 minutes

Inclination: 98.7748 deg

SMA: 7227.747 km

Apoapsis: 860.993 km

Periapsis: 838.232 km

RAAN: 227.1855 deg

Eccentricy: 0.0015746

Argument of periapsis: 274.4838 deg

Mean anomaly: 85.4535 deg

Mean motion: 14.12857364 rev/day

Mean motion (dot): 0.0000001 rev/day2

B* drag term: 0.000028836 1/REarth

Two-line elements (TLE)

Creation date: June 30, 2025, 10:36 p.m.

Reference frame: TEME

Reference center: EARTH

Epoch: June 30, 2025, 8:45 p.m. UTC

TLE line 0: 0 SJ-5

TLE line 1: 1 25731U 99025B 25181.86517799 .00000010 00000-0 28836-4 0 9994

TLE line 2: 2 25731 98.7748 227.1855 0015746 274.4838 85.4535 14.12857364347568

Live tracking on map

Real-time ground track for satellite SJ-5.

In-orbit conjunctions

A list of the most updated potential collisions computed for object SJ-5.

Target Orbit TCA Probability of collision Miss distance Type
THORAD AGENA D DEB SSO 2025-03-12 15:08:00 0.0005043222 135.0 (m) DEBRIS
FENGYUN 1C DEB SSO 2024-08-22 20:20:02 0.0001244523 307.0 (m) DEBRIS
FENGYUN 1C DEB SSO 2024-06-05 08:20:58 0.0004105647 155.0 (m) DEBRIS

Associated space launch

Chinese polar orbiting meteorological satellite

SJ-5 was lifted into orbit during the mission ‘Long March 4B | Feng Yun 1C’, on board a Long March 4B space rocket.

The launch took place on May 10, 1999, 1:33 a.m. from Launch Complex 7.

For more information about the launch, click the button.

Launch to space Long March 4B | Feng Yun 1C
Long March 4B | Feng Yun 1C

Agency: N/A

Status: Launch Successful

Launch date: May 10, 1999, 1:33 a.m. UTC

Rocket: Long March 4B

Launch pad: Launch Complex 7

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

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