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ExPaceKuaizhou 11Launch Area 95A, Jiuquan Satellite Launch Center, People's Republic of China

SpaceTY-51 & 52

Launched

September 17, 2026 · 02:40 UTC

Launch Successful

Image: 中国航天科工

Summary

The Kuaizhou 11 rocket, operated by ExPace, launched from Jiuquan's Launch Area 95A, successfully inserting the SpaceTY-51 & 52 satellites into their target orbit. The two SpaceTY-built spacecraft are an Earth observation radar pair.

Watch
No webcast on record.
Vehicle
Kuaizhou 11 · ExPace
Booster
No booster details on record.
Mission
Earth Science · Low Earth Orbit (LEO)
Milestone
7th Kuaizhou 11 flight · 3rd this yearExPace's 35th launch3rd this yearhumanity's 7,396th orbital launch attempt223rd orbital launch attempt this year

Flight preview

Orbit: as tracked

505 × 510 km · 55.0°At launchearliest tracked set, 2026-09-17
55.0°Inclination
507 × 509 kmPerigee × apogeefrom mean elements
94.6 minPeriodfrom mean elements
237.3°Ascending node
2 d agoElement epoch2026-10-13 13:25 UTC

TIANYI 51 · NORAD 100741 · 2026-215A · Space-Track · tracking 1 of 2 objects

Show the numbers for orbit elements
Object
TIANYI-51
Object ID
2026-215A
Epoch
2026-10-13 13:25:57 UTC
Mean motion
15.2171455 rev/day
Eccentricity
0.00018713
Inclination
55.0222°
Ascending node
237.2655°
Arg. of perigee
115.5066°
Mean anomaly
244.6149°
Element set
999
Rev at epoch
402
B*
-0.00069022185

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

About this launch

SpaceTY-51 & 52 launched on an ExPace Kuaizhou 11 from Launch Area 95A, Jiuquan Satellite Launch Center, People's Republic of China on September 17, 2026 at 02:40 UTC. The launch window ran from 02:31 to 03:12 UTC. It was ExPace's 35th launch, 3rd this year and humanity's 7,396th orbital launch attempt. It was the 7th Kuaizhou 11 flight and the 3rd this year. The payload was bound for low Earth orbit (LEO). TIANYI 51, one of 2 catalogued objects, reached a 505 × 510 km orbit inclined 55.0°.

2 Earth observation radar satellites built by the Chinese satellite manufacturer SpaceTY.

News

2 stories

Pad

Map of Launch Area 95A

Launch Area 95A, Jiuquan Satellite Launch Center, People's Republic of China

68th launch from Launch Area 95A, 4th this year · 297th from Jiuquan Satellite Launch Center, People's Republic of China

Local pad time at liftoff: Sep 17, 10:40 AM GMT+8, in daylight

68 launches from this pad · 299 from Jiuquan Satellite Launch Center, People's Republic of China

91 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 · 9/11/2026 · source

Questions

When did SpaceTY-51 & 52 launch?

SpaceTY-51 & 52 launched on September 17, 2026 at 02:40 UTC. The launch window ran from 02:31 to 03:12 UTC.

Where can I watch SpaceTY-51 & 52?

No webcast is on record for this launch.

What rocket launched SpaceTY-51 & 52?

Kuaizhou 11, flown by ExPace. Kuaizhou 11 spec sheet

Where did SpaceTY-51 & 52 launch from?

Launch Area 95A, Jiuquan Satellite Launch Center, People's Republic of China. Liftoff was Sep 17, 10:40 AM GMT+8 local time at the pad.

What orbit did SpaceTY-51 & 52 reach?

TIANYI 51, one of 2 catalogued objects, reached a 505 × 510 km orbit inclined 55.0°.