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China Aerospace Science and Technology CorporationLong March 3B/ELaunch Complex 2 (LC-2), Xichang Satellite Launch Center, People's Republic of China

Tianlian 2-04

Launched

March 26, 2025 · 15:55 UTC

Launch Successful
CZ-3B | Tianlian 2-04

Image: China Aerospace Science and Technology Corporation

Summary

Tianlian 2-04 launched on a China Aerospace Science and Technology Corporation Long March 3B/E from Launch Complex 2 (LC-2), Xichang Satellite Launch Center, People's Republic of China on March 26, 2025 at 15:55 UTC. The launch window ran from 15:45 to 16:20 UTC. It was China Aerospace Science and Technology Corporation's 512th launch, 11th this year and humanity's 6,912th orbital launch attempt. It was the 67th Long March 3B/E flight and the 5th this year. The payload was bound for Geostationary Transfer Orbit (GTO). Tian Lian 2-04, one of 2 catalogued objects, reached a 197 × 35,849 km orbit inclined 27.1°. 2 objects from this launch are catalogued, one of them a payload.

Booster
No booster details on record.
Mission
Communications · Geostationary Transfer Orbit (GTO)
Milestone
67th Long March 3B/E flight · 5th this yearChina Aerospace Science and Technology Corporation's 512th launch11th this yearhumanity's 6,912th orbital launch attempt63rd orbital launch attempt this year

Flight preview

Orbit: as tracked

27.1°Inclination
197 × 35849 kmPerigee × apogeefrom mean elements
631.9 minPeriodfrom mean elements
60.4°Ascending node
568 d agoElement epoch2025-03-26 19:07 UTC · stale

Tian Lian 2-04 · NORAD 63361 · 2025-062 · Space-Track · tracking 1 of 2 objects

Show the numbers for orbit elements
Object
TIANLIAN-2 04
Object ID
2025-062A
Epoch
2025-03-26 19:07:22 UTC
Mean motion
2.27868174 rev/day
Eccentricity
0.73075
Inclination
27.1086°
Ascending node
60.379°
Arg. of perigee
179.4696°
Mean anomaly
96.3021°
Element set
999
Rev at epoch
0
B*
0

Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: GTO. Ascent drawn from padside's representative profile.

Catalogued objects

2 catalogued: 1 payload, 1 rocket stage; 2 still in orbit

  • Tian Lian 2-04 · NORAD 63361 · in orbit

CZ-3B Y108 Stage 3 · in orbit

Data from J. McDowell, planet4589.org

About this launch

Tianlian is a Chinese data tracking and relay communications geostationary satellite series. The TL 2 (Tian Lian 2) satellites represent the second generation of this relay satellite network, and is based on the DFH-4 Bus, a three-axis-stabilized telecommunications satellite platform. TL 2 will be used to support real-time communications between orbiting satellites and ground control stations. This system will replace the current network of ground-based space tracking and telemetry stations and space tracking ships.

Pad

Map of Launch Complex 2 (LC-2)

Launch Complex 2 (LC-2), Xichang Satellite Launch Center, People's Republic of China

117th launch from Launch Complex 2 (LC-2), 3rd this year · 222nd from Xichang Satellite Launch Center, People's Republic of China

Local pad time at liftoff: Mar 26, 11:55 PM GMT+8, at night

126 launches from this pad · 242 from Xichang Satellite Launch Center, People's Republic of China

32 days after the previous launch from this pad

Updates

Launch success.

Show 1 earlier update
  • Added launch per NOTAMs; Payload and launch vehicle identities uncertain.

    Cosmic_Penguin · 3/22/2025 · source

Questions

When did Tianlian 2-04 launch?

Tianlian 2-04 launched on March 26, 2025 at 15:55 UTC. The launch window ran from 15:45 to 16:20 UTC.

Where can I watch Tianlian 2-04?

Coverage: Long March-3B launches TianLian-2 04. Watch the replay

What rocket launched Tianlian 2-04?

Long March 3B/E, flown by China Aerospace Science and Technology Corporation. Long March 3B/E spec sheet

Where did Tianlian 2-04 launch from?

Launch Complex 2 (LC-2), Xichang Satellite Launch Center, People's Republic of China. Liftoff was Mar 26, 11:55 PM GMT+8 local time at the pad.

What orbit did Tianlian 2-04 reach?

Tian Lian 2-04, one of 2 catalogued objects, reached a 197 × 35,849 km orbit inclined 27.1°.

How many satellites did Tianlian 2-04 launch?

1 payload from this launch is catalogued, still in orbit (Data from J. McDowell, planet4589.org).