China Aerospace Science and Technology CorporationLong March 4BLaunch Area 94 (SLS-2 / 603), Jiuquan Satellite Launch Center, People's Republic of China
Shijian 26
Launched
May 29, 2025 · 04:12 UTC
Image: CASC
Summary
Shijian 26 launched on a China Aerospace Science and Technology Corporation Long March 4B from Launch Area 94 (SLS-2 / 603), Jiuquan Satellite Launch Center, People's Republic of China on May 29, 2025 at 04:12 UTC. The launch window ran from 04:03 to 04:32 UTC. It was China Aerospace Science and Technology Corporation's 526th launch, 25th this year and humanity's 6,968th orbital launch attempt. It was the 53rd Long March 4B flight and the 1st this year. The payload was bound for Sun-Synchronous Orbit (SSO). Shi Jian 26, one of 3 catalogued objects, reached a 503 × 582 km orbit inclined 97.5°. 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 · Sun-Synchronous Orbit (SSO)
- Milestone
- 53rd Long March 4B flight · 1st this yearChina Aerospace Science and Technology Corporation's 526th launch25th this yearhumanity's 6,968th orbital launch attempt119th orbital launch attempt this year
Flight preview
Orbit: as tracked
Shi Jian 26 · NORAD 64199 · 2025-115 · Space-Track · tracking 1 of 3 objects
Show the numbers for orbit elements
- Object
- TBA - TO BE ASSIGNED
- Object ID
- 2025-115A
- Epoch
- 2025-05-29 10:28:59 UTC
- Mean motion
- 15.10295557 rev/day
- Eccentricity
- 0.0057139
- Inclination
- 97.519°
- Ascending node
- 224.8265°
- Arg. of perigee
- 196.841°
- Mean anomaly
- 263.4965°
- Element set
- 999
- Rev at epoch
- 3
- 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
3 catalogued: 1 payload, 1 rocket stage, 1 component; 1 still in orbit
- Shi Jian 26 · NORAD 64199 · in orbit
CZ-4B Y62 Stage 3 · re-entered October 6, 2025
Data from J. McDowell, planet4589.org
About this launch
Chinese experimental satellite claimed to be for "Earth observation & environmental management" purposes, details not known.
Pad
Launch Area 94 (SLS-2 / 603), Jiuquan Satellite Launch Center, People's Republic of China
125th launch from Launch Area 94 (SLS-2 / 603), 6th this year · 252nd from Jiuquan Satellite Launch Center, People's Republic of China
Local pad time at liftoff: May 29, 12:12 PM GMT+8, in daylight
138 launches from this pad · 299 from Jiuquan Satellite Launch Center, People's Republic of China
15 days after the previous launch from this pad
All launches from Jiuquan Satellite Launch Center, People's Republic of ChinaOpen in maps
Updates
Launch success.
Show 1 earlier update
Added launch per NOTAMs; Payload and launch vehicle identities uncertain.
Cosmic_Penguin · 5/23/2025 · source
Questions
When did Shijian 26 launch?
Shijian 26 launched on May 29, 2025 at 04:12 UTC. The launch window ran from 04:03 to 04:32 UTC.
Where can I watch Shijian 26?
No webcast is on record for this launch.
What rocket launched Shijian 26?
Long March 4B, flown by China Aerospace Science and Technology Corporation. Long March 4B spec sheet
Where did Shijian 26 launch from?
Launch Area 94 (SLS-2 / 603), Jiuquan Satellite Launch Center, People's Republic of China. Liftoff was May 29, 12:12 PM GMT+8 local time at the pad.
What orbit did Shijian 26 reach?
Shi Jian 26, one of 3 catalogued objects, reached a 503 × 582 km orbit inclined 97.5°.
How many satellites did Shijian 26 launch?
1 payload from this launch is catalogued, still in orbit (Data from J. McDowell, planet4589.org).