China Aerospace Science and Technology CorporationLong March 11South China Sea (launch location 1), Haiyang Oriental Spaceport
Shiyan 24C
Launched
December 25, 2023 · 22:39 UTC

Summary
Shiyan 24C launched on a China Aerospace Science and Technology Corporation Long March 11 from South China Sea (launch location 1), Haiyang Oriental Spaceport on December 25, 2023 at 22:39 UTC. The launch window ran from 22:20 to 23:05 UTC. It was China Aerospace Science and Technology Corporation's 450th launch, 45th this year and humanity's 6,583rd orbital launch attempt. It was the 17th Long March 11 flight and the 2nd this year. The payload was bound for Sun-Synchronous Orbit (SSO). Shiyan 24C-01, one of 4 catalogued objects, reached a 549 × 562 km orbit inclined 97.3°. 4 objects from this launch are catalogued, 3 of them payloads.
- Watch
- Booster
- No booster details on record.
- Mission
- Government/Top Secret · Sun-Synchronous Orbit (SSO)
- Milestone
- 17th Long March 11 flight · 2nd this yearChina Aerospace Science and Technology Corporation's 450th launch45th this yearhumanity's 6,583rd orbital launch attempt215th orbital launch attempt this year
Flight preview
Orbit: as tracked
Shiyan 24C-01 · NORAD 58650 · 2023-206 · Space-Track · tracking 1 of 4 objects
Show the numbers for orbit elements
- Object
- TBA - TO BE ASSIGNED
- Object ID
- 2023-206A
- Epoch
- 2023-12-26 03:01:35 UTC
- Mean motion
- 15.06003485 rev/day
- Eccentricity
- 0.0008963
- Inclination
- 97.3315°
- Ascending node
- 4.1695°
- Arg. of perigee
- 286.5832°
- Mean anomaly
- 125.0239°
- Element set
- 999
- Rev at epoch
- 2
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: SSO. Ascent drawn from padside's representative profile.
Catalogued objects
4 catalogued: 3 payloads, 1 rocket stage; 3 still in orbit
- Shiyan 24C-01 · NORAD 58650 · in orbit
- Shiyan 24C-02 · NORAD 58651 · in orbit
- Shiyan 24C-03 · NORAD 58652 · in orbit
CZ-11H Y5 Stage 4 · re-entered January 18, 2024
Data from J. McDowell, planet4589.org
About this launch
3 satellites of unknown testing purposes, officially referred as for "orbital technology testing".
Pad

South China Sea (launch location 1), Haiyang Oriental Spaceport
2nd launch from South China Sea (launch location 1), 2nd this year · 8th from Haiyang Oriental Spaceport
Local pad time at liftoff: Dec 26, 6:39 AM GMT+8, in twilight
2 launches from this pad · 28 from Haiyang Oriental Spaceport
20 days after the previous launch from this pad
Updates
Launch success.
Show 1 earlier update
Added launch per NOTAMs; Payload and launch vehicle identities highly uncertain.
Cosmic_Penguin · 12/23/2023 · source
Questions
When did Shiyan 24C launch?
Shiyan 24C launched on December 25, 2023 at 22:39 UTC. The launch window ran from 22:20 to 23:05 UTC.
Where can I watch Shiyan 24C?
Coverage: Long March-11 launches Shiyan-24C. Watch the replay
What rocket launched Shiyan 24C?
Long March 11, flown by China Aerospace Science and Technology Corporation. Long March 11 spec sheet
Where did Shiyan 24C launch from?
South China Sea (launch location 1), Haiyang Oriental Spaceport. Liftoff was Dec 26, 6:39 AM GMT+8 local time at the pad.
What orbit did Shiyan 24C reach?
Shiyan 24C-01, one of 4 catalogued objects, reached a 549 × 562 km orbit inclined 97.3°.
How many satellites did Shiyan 24C launch?
3 payloads from this launch are catalogued, 3 of them still in orbit (Data from J. McDowell, planet4589.org).
![[AUTO] Long March 11 | Shiyan 24C - image](/media?u=https%3A%2F%2Fthespacedevs-prod.nyc3.digitaloceanspaces.com%2Fmedia%2Fimages%2Flong2520march_image_20231226095919.jpeg&w=1600)