CHINA AEROSPACE SCIENCE AND TECHNOLOGY CORPORATION

Long March 12B | Demo Flight (SpaceSail Polar Group #10)

SUCCESSJun 1, 2026 at 08:40 UTCLong March 12B →
PADLong March 12 series Pad
SITEJiuquan Satellite Launch Center, People's Republic of China →
ORBITPolar Orbit
TYPETest Flight

First test launch of CASC/CACL’s Long March 12B rocket; carried a batch of 2 operational Low Earth Orbit communication satellites with Ku, Q and V band payloads for the G60 constellation operated by Shanghai Spacesail Technologies with funding backed by the Shanghai local government.

Initial constellation will consist of 1296 satellites by 2027 with long term plans to expand it to 12000 satellites.

MISSION
Demo Flight (SpaceSail Polar Group #10)
MISSION TYPE
Test Flight
TARGET ORBIT
Polar Orbit
COUNTRY
CHN
CONFIRMEDPrecision: Half-year
LAUNCH LIBRARY 2 PRIMARY
API ID: 459225a2-dc1a-43d7-8c2c-78f9552b0a05
Reported date: Jun 1, 2026 at 08:40 UTC
Last synced: 4 hours ago
This launch date and time are confirmed by the launch provider. Countdown is active.
SCHEDULE & STATUS HISTORY
STATUS CHANGEJun 1, 2026 at 14:17 UTC
TBDSUCCESS
Source: Launch Library 2
MOVED UP(28.6 days)
Jun 1, 2026 at 14:17 UTC
Jun 30, 2026 00:00Jun 1, 2026 08:40 UTC
Source: Launch Library 2
DELAYED(91 days)
May 22, 2026 at 13:47 UTC
Mar 31, 2026 00:00Jun 30, 2026 00:00 UTC
Source: Launch Library 2
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#1THIS FLIGHT
1TOTAL FLIGHTS
NEW BOOSTER
First flight: Jun 1, 2026
MANUFACTURER
China Aerospace Science and Technology Corporation
FLIGHTS
1
SUCCESSES
1
SUCCESS RATE
100%

Long March 12B/Changzheng 12B (LM-12B/CZ-12B) is a reusable orbital launch vehicle developed by the China Aerospace Science and Technology Commercial Launch Vehicle Group (CACL), a subsidiary company of the state-owned China Aerospace Science and Technology Corporation (CASC). The rocket is based on the Long March 12, but extensively re-designed for first stage re-usability, and use of gas generator cycle kerosene/liquid oxygen powered rocket engines in both stages. The first stage uses 9 YF-102R engines and the second stage uses 1 YF-102V engine, both from CASC's Academy of Aerospace Liquid Propulsion Technology (AALPT). On launch missions where the first stage is recovered, it will land on a down-range landing pad located in Minqin County, Gansu Province.

When is the Long March 12B | Demo Flight (SpaceSail Polar Group #10) launch?
The Long March 12B | Demo Flight (SpaceSail Polar Group #10) is scheduled for Monday, June 1, 2026 at 8:40 AM UTC. This is the NET (No Earlier Than) time and may be subject to change. Current status: SUCCESS.
What rocket is being used for Demo Flight (SpaceSail Polar Group #10)?
The Long March 12B | Demo Flight (SpaceSail Polar Group #10) mission uses the Long March 12B rocket, manufactured by China Aerospace Science and Technology Corporation. The Long March 12B has flown 1 times with a 100% success rate.
Where is the Long March 12B | Demo Flight (SpaceSail Polar Group #10) launching from?
The launch takes place from Long March 12 series Pad at Jiuquan Satellite Launch Center, People's Republic of China.
What orbit is Demo Flight (SpaceSail Polar Group #10) going to?
The Demo Flight (SpaceSail Polar Group #10) mission is targeting Polar Orbit.
Who is launching Demo Flight (SpaceSail Polar Group #10)?
The Long March 12B | Demo Flight (SpaceSail Polar Group #10) is operated by China Aerospace Science and Technology Corporation.
Can I watch the Long March 12B | Demo Flight (SpaceSail Polar Group #10) launch live?
Yes. Visit the launch detail page on Space Launch Live for embedded YouTube webcasts, replay videos, and links to live coverage from SpaceX, NASA, NASASpaceflight, and other channels.
Jun 3, 2026 00:17 UTC
Launch completed successfully
Updated via Launch Library 2
Jun 1, 2026 14:17 UTC
Launch moved up by 28.6 days
Jun 30, 2026 00:00 UTC u2192 Jun 1, 2026 08:40 UTC (via Launch Library 2)
Jun 1, 2026 14:17 UTC
Status changed: TBD u2192 SUCCESS
Launch completed successfully (via Launch Library 2)
May 22, 2026 13:47 UTC
Launch delayed by 91 days
Mar 31, 2026 00:00 UTC u2192 Jun 30, 2026 00:00 UTC (via Launch Library 2)
Mar 22, 2026 17:24 UTC
Launch added to tracker
Imported from Launch Library 2 API
Mar 22, 2026 17:24 UTC
Launch date set: Jun 1, 2026 at 08:40 UTC
NET (No Earlier Than) confirmed by China Aerospace Science and Technology Corporation
Last data sync: 4 hours ago
Launch Library 24 hours ago
Launch ID: 459225a2-dc1a-43d7-8c2c-78f9552b0a05
Open-Meteo Weather6 hours ago
Pad weather at 40.89, 100.22
X (Twitter) Search5 hours ago
10 tweets
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