STTW-1

Satellite information

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Satellite Type and Status

PAYLOADIN ORBIT

Key statistics

Satellite STTW-1 at a glance.

Uptime

14565

Days in orbit

Revolutions

≈ 1.0

Per day

Orbit

OTHER

Other

Inclination

10.9

Latest

Satellite identification and parameters

Extended collection of information and parameters for STTW-1.

Object identification

Identified? True

Debris? False

Object name: STTW-1

International designator: 1986-010A

Object number (NORAD): 16526

Object ID (CCSDS): 16526

Country: PEOPLES REPUBLIC OF CHINA (PRC)

Current information (Y/N): Y

RCS size: LARGE

Orbital parameters

Period: 1435.988 minutes

Inclination: 10.8824 deg

SMA: 42162.601 km

Apoapsis: 35804.557 km

Periapsis: 35764.375 km

RAAN: 324.7273 deg

Eccentricy: 0.00047651

Argument of periapsis: 293.3471 deg

Mean anomaly: 241.4058 deg

Mean motion: 1.00279386 rev/day

Mean motion (dot): -0.00000309 rev/day2

B* drag term: 0.0 1/REarth

Two-line elements (TLE)

Creation date: Dec. 18, 2025, 2:19 a.m.

Reference frame: TEME

Reference center: EARTH

Epoch: Dec. 17, 2025, 8:39 p.m. UTC

TLE line 0: 0 STTW-1

TLE line 1: 1 16526U 86010A 25351.86094795 -.00000309 00000-0 00000-0 0 9992

TLE line 2: 2 16526 10.8824 324.7273 0004765 293.3471 241.4058 1.00279386153643

Live tracking on map

Real-time ground track for satellite STTW-1.

In-orbit conjunctions

A list of the most updated potential collisions computed for object STTW-1.

Target Orbit TCA Probability of collision Miss distance Type
COSMOS 1540 OTHER 2025-06-12 15:38:56 TBA 2246.0 (m) PAYLOAD

Associated space launch

Chinese geostationary communications satellite

STTW-1 was lifted into orbit during the mission ‘Long March 3 | DFH-2A 1’, on board a Long March 3 space rocket.

The launch took place on Feb. 1, 1986, 12:37 p.m. from Launch Complex 3 (LC-3/LA-1).

For more information about the launch, click the button.

Launch to space Long March 3 | DFH-2A 1
Long March 3 | DFH-2A 1

Agency: N/A

Status: Launch Successful

Launch date: Feb. 1, 1986, 12:37 p.m. UTC

Rocket: Long March 3

Launch pad: Launch Complex 3 (LC-3/LA-1)

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

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