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China Aerospace Science and Technology CorporationLong March 3B/ELaunch Complex 3 (LC-3/LA-1), Xichang Satellite Launch Center, People's Republic of China

TJSW-17

Launched

April 10, 2025 · 16:47 UTC

Launch Successful

Image: China Aerospace Science and Technology Corporation

Summary

TJSW-17 launched on a China Aerospace Science and Technology Corporation Long March 3B/E from Launch Complex 3 (LC-3/LA-1), Xichang Satellite Launch Center, People's Republic of China on April 10, 2025 at 16:47 UTC. The launch window ran from 16:37 to 17:12 UTC. It was China Aerospace Science and Technology Corporation's 516th launch, 15th this year and humanity's 6,924th orbital launch attempt. It was the 68th Long March 3B/E flight and the 6th this year. The payload was bound for Geostationary Transfer Orbit (GTO). Tongxin Jishu Shiyan 17, one of 3 catalogued objects, reached a 211 × 36,186 km orbit inclined 19.0°. 3 objects from this launch are catalogued, one of them a payload.

Watch
No webcast on record.
Booster
No booster details on record.
Mission
Government/Top Secret · Geostationary Transfer Orbit (GTO)
Milestone
68th Long March 3B/E flight · 6th this yearChina Aerospace Science and Technology Corporation's 516th launch15th this yearhumanity's 6,924th orbital launch attempt75th orbital launch attempt this year

Flight preview

Orbit: as tracked

19.0°Inclination
211 × 36186 kmPerigee × apogeefrom mean elements
638.8 minPeriodfrom mean elements
88.8°Ascending node
553 d agoElement epoch2025-04-10 19:02 UTC · stale

Tongxin Jishu Shiyan 17 · NORAD 63524 · 2025-073 · Space-Track · tracking 1 of 3 objects

Show the numbers for orbit elements
Object
TBA - TO BE ASSIGNED
Object ID
2025-073A
Epoch
2025-04-10 19:02:23 UTC
Mean motion
2.25423644 rev/day
Eccentricity
0.7321005
Inclination
18.9941°
Ascending node
88.8121°
Arg. of perigee
179.6083°
Mean anomaly
63.2804°
Element set
999
Rev at epoch
1
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

3 catalogued: 1 payload, 1 rocket stage, 1 component; 3 still in orbit

  • Tongxin Jishu Shiyan 17 · NORAD 63524 · in orbit

CZ-3B Y107 Stage 3 · in orbit

Data from J. McDowell, planet4589.org

About this launch

Chinese classified satellite claimed to be for communication technology test purposes. Actual mission not known.

Pad

Map of Launch Complex 3 (LC-3/LA-1)

Launch Complex 3 (LC-3/LA-1), Xichang Satellite Launch Center, People's Republic of China

99th launch from Launch Complex 3 (LC-3/LA-1), 3rd this year · 223rd from Xichang Satellite Launch Center, People's Republic of China

Local pad time at liftoff: Apr 11, 12:47 AM GMT+8, at night

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

31 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 · 4/9/2025 · source

Questions

When did TJSW-17 launch?

TJSW-17 launched on April 10, 2025 at 16:47 UTC. The launch window ran from 16:37 to 17:12 UTC.

Where can I watch TJSW-17?

No webcast is on record for this launch.

What rocket launched TJSW-17?

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

Where did TJSW-17 launch from?

Launch Complex 3 (LC-3/LA-1), Xichang Satellite Launch Center, People's Republic of China. Liftoff was Apr 11, 12:47 AM GMT+8 local time at the pad.

What orbit did TJSW-17 reach?

Tongxin Jishu Shiyan 17, one of 3 catalogued objects, reached a 211 × 36,186 km orbit inclined 19.0°.

How many satellites did TJSW-17 launch?

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