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i-SpaceHyperbola-1Launch Area 95A, Jiuquan Satellite Launch Center, People's Republic of China

DEAR-1

Launched

December 17, 2023 · 07:00 UTC

Launch Successful

Summary

DEAR-1 launched on an i-Space Hyperbola-1 from Launch Area 95A, Jiuquan Satellite Launch Center, People's Republic of China on December 17, 2023 at 07:00 UTC. The launch window ran from 06:53 to 08:27 UTC. It was i-Space's 6th launch, 2nd this year and humanity's 6,576th orbital launch attempt. It was the 6th Hyperbola-1 flight and the 2nd this year. The payload was bound for Sun-Synchronous Orbit (SSO). Dier-1-Liangxi, one of 3 catalogued objects, reached a 498 × 512 km orbit inclined 97.4°. 3 objects from this launch are catalogued, one of them a payload.

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Vehicle
Hyperbola-1 · i-Space
Booster
No booster details on record.
Mission
Technology · Sun-Synchronous Orbit (SSO)
Milestone
6th Hyperbola-1 flight · 2nd this yeari-Space's 6th launch2nd this yearhumanity's 6,576th orbital launch attempt208th orbital launch attempt this year

Flight preview

Orbit: as tracked

97.4°Inclination
498 × 512 kmPerigee × apogeefrom mean elements
94.6 minPeriodfrom mean elements
105.9°Ascending node
1034 d agoElement epoch2023-12-17 11:33 UTC · stale

Dier-1-Liangxi · NORAD 58586 · 2023-199 · Space-Track · tracking 1 of 3 objects

Show the numbers for orbit elements
Object
TBA - TO BE ASSIGNED
Object ID
2023-199A
Epoch
2023-12-17 11:33:15 UTC
Mean motion
15.22741441 rev/day
Eccentricity
0.0010272
Inclination
97.4049°
Ascending node
105.8693°
Arg. of perigee
256.5211°
Mean anomaly
183.943°
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

3 catalogued: 1 payload, 1 rocket stage, 1 component; none still in orbit

  • Dier-1-Liangxi · NORAD 58586 · re-entered October 1, 2025

Shuang Quxian 1 Y7 St4 · re-entered April 7, 2024

Data from J. McDowell, planet4589.org

About this launch

Prototype recoverable experiment spacecraft by Chinese firm AZSPACE.

Pad

Map of Launch Area 95A

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

47th launch from Launch Area 95A, 12th this year · 215th from Jiuquan Satellite Launch Center, People's Republic of China

Local pad time at liftoff: Dec 17, 3:00 PM GMT+8, in daylight

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

12 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.

Cosmic_Penguin · Dec 17, 2023 · source

Show 3 earlier updates

  • Slipped to December 17 per new NOTAMs.

    Cosmic_Penguin · 12/15/2023 · source

  • Updated launch window per new NOTAMs.

    Cosmic_Penguin · 12/12/2023 · source

  • Added launch per NOTAMs; Payload and Launch Vehicle identities uncertain.

    Cosmic_Penguin · 12/11/2023 · source

Questions

When did DEAR-1 launch?

DEAR-1 launched on December 17, 2023 at 07:00 UTC. The launch window ran from 06:53 to 08:27 UTC.

Where can I watch DEAR-1?

Coverage: Hyperbola-1 launches DEAR-1. Watch the replay

What rocket launched DEAR-1?

Hyperbola-1, flown by i-Space. Hyperbola-1 spec sheet

Where did DEAR-1 launch from?

Launch Area 95A, Jiuquan Satellite Launch Center, People's Republic of China. Liftoff was Dec 17, 3:00 PM GMT+8 local time at the pad.

What orbit did DEAR-1 reach?

Dier-1-Liangxi, one of 3 catalogued objects, reached a 498 × 512 km orbit inclined 97.4°.

How many satellites did DEAR-1 launch?

1 payload from this launch is catalogued, no longer in orbit (Data from J. McDowell, planet4589.org).