China Aerospace Science and Technology CorporationLong March 3B/ELaunch Complex 2 (LC-2), Xichang Satellite Launch Center, People's Republic of China
TJS-4 (TJSW-4)
Launched
October 17, 2019
Image: China Aerospace Science and Technology Corporation
Summary
TJS-4 (TJSW-4) 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 October 17, 2019. It was China Aerospace Science and Technology Corporation's 262nd launch, 18th this year and humanity's 5,895th orbital launch attempt. It was the 32nd Long March 3B/E flight and the 6th this year. The payload was bound for Geostationary Transfer Orbit (GTO). Tongxin Jishu Shiyan 4, one of 2 catalogued objects, reached a 224 × 36,058 km orbit inclined 27.2°. 2 objects from this launch are catalogued, one of them a payload.
- Booster
- No booster details on record.
- Mission
- Government/Top Secret · Geostationary Transfer Orbit (GTO)
- Milestone
- 32nd Long March 3B/E flight · 6th this yearChina Aerospace Science and Technology Corporation's 262nd launch18th this yearhumanity's 5,895th orbital launch attempt75th orbital launch attempt this year
Flight preview
Orbit: as tracked
Tongxin Jishu Shiyan 4 · NORAD 44637 · 2019-070 · Space-Track · tracking 1 of 2 objects
Show the numbers for orbit elements
- Object
- TBA - TO BE ASSIGNED
- Object ID
- 2019-070A
- Epoch
- 2019-10-17 16:36:59 UTC
- Mean motion
- 2.26219245 rev/day
- Eccentricity
- 0.7309428
- Inclination
- 27.1648°
- Ascending node
- 252.9348°
- Arg. of perigee
- 180.0879°
- Mean anomaly
- 29.802°
- 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; 1 still in orbit
- Tongxin Jishu Shiyan 4 · NORAD 44637 · in orbit
CZ-3B Y57 Stage 3 · re-entered November 1, 2024
Data from J. McDowell, planet4589.org
About this launch
TJS-4 is a geosynchronous satellite which is used for multi-band and high-rate satellite communication technology verification.
Pad

Launch Complex 2 (LC-2), Xichang Satellite Launch Center, People's Republic of China
82nd launch from Launch Complex 2 (LC-2), 6th this year · 135th from Xichang Satellite Launch Center, People's Republic of China
126 launches from this pad · 242 from Xichang Satellite Launch Center, People's Republic of China
24 days after the previous launch from this pad
All launches from Xichang Satellite Launch Center, People's Republic of ChinaOpen in maps
Questions
When did TJS-4 (TJSW-4) launch?
TJS-4 (TJSW-4) launched on October 17, 2019. The time is known to the hour, not the minute.
Where can I watch TJS-4 (TJSW-4)?
Coverage: Long March-3B launches Communication Technology Test Satellite 4. Watch the replay
What rocket launched TJS-4 (TJSW-4)?
Long March 3B/E, flown by China Aerospace Science and Technology Corporation. Long March 3B/E spec sheet
Where did TJS-4 (TJSW-4) launch from?
Launch Complex 2 (LC-2), Xichang Satellite Launch Center, People's Republic of China.
What orbit did TJS-4 (TJSW-4) reach?
Tongxin Jishu Shiyan 4, one of 2 catalogued objects, reached a 224 × 36,058 km orbit inclined 27.2°.
How many satellites did TJS-4 (TJSW-4) launch?
1 payload from this launch is catalogued, still in orbit (Data from J. McDowell, planet4589.org).
![[AUTO] Long March 3B/E | ChinaSat 26 - image](/media?u=https%3A%2F%2Fthespacedevs-prod.nyc3.digitaloceanspaces.com%2Fmedia%2Fimages%2Flong2520march_image_20230907120240.jpeg&w=1600)