PADLaunch Area 94 (SLS-2 / 603)
SITEJiuquan Satellite Launch Center, People's Republic of China →ORBITLow Earth Orbit
TYPEAstrophysics
MISSION OVERVIEW
Hard X-ray Modulation Telescope (HXMT) is a Chinese X-ray space observatory. This will be China’s first astronomy satellite, and it is tasked with observation of black holes, neutron stars and other phenomena based on their X-ray and gamma ray emissions.
LAUNCH DETAILS
VEHICLE
Long March 4BMISSION
Huiyan (HXMT (Hard X-ray Modulation Telescope))
MISSION TYPE
Astrophysics
TARGET ORBIT
Low Earth Orbit
LAUNCH PAD
Launch Area 94 (SLS-2 / 603)COUNTRY
CHN
LAUNCH TIME VERIFICATION
CONFIRMEDPrecision: Minute
LAUNCH LIBRARY 2 PRIMARY
API ID: 5ee30bd6-70bc-4426-9be6-3af1327281ba
Reported date: Jun 15, 2017 at 03:00 UTC
Last synced: 14 seconds ago
This launch date and time are confirmed by the launch provider. Countdown is active.
LAUNCH MAP
PAD WEATHER
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VEHICLE — Long March 4B →
MANUFACTURER
China Aerospace Science and Technology Corporation
VARIANT
B
FLIGHTS
56
SUCCESSES
55
SUCCESS RATE
98.2%
The Long March 4B (Chinese: 长征四号乙火箭), also known as the Chang Zheng 4B, CZ-4B and LM-4B is a Chinese orbital carrier rocket. Launched from Launch Complex 1 at the Taiyuan Satellite Launch Center, it is a 3-stage rocket, used mostly to place satellites into low Earth and sun synchronous orbits.
FREQUENTLY ASKED QUESTIONS
When is the Long March 4B | Huiyan (HXMT (Hard X-ray Modulation Telescope)) launch?
The Long March 4B | Huiyan (HXMT (Hard X-ray Modulation Telescope)) is scheduled for Thursday, June 15, 2017 at 3:00 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 Huiyan (HXMT (Hard X-ray Modulation Telescope))?
The Long March 4B | Huiyan (HXMT (Hard X-ray Modulation Telescope)) mission uses the Long March 4B rocket, manufactured by China Aerospace Science and Technology Corporation. The Long March 4B has flown 56 times with a 98.2% success rate.
Where is the Long March 4B | Huiyan (HXMT (Hard X-ray Modulation Telescope)) launching from?
The launch takes place from Launch Area 94 (SLS-2 / 603) at Jiuquan Satellite Launch Center, People's Republic of China.
What orbit is Huiyan (HXMT (Hard X-ray Modulation Telescope)) going to?
The Huiyan (HXMT (Hard X-ray Modulation Telescope)) mission is targeting Low Earth Orbit.
Who is launching Huiyan (HXMT (Hard X-ray Modulation Telescope))?
The Long March 4B | Huiyan (HXMT (Hard X-ray Modulation Telescope)) is operated by China Aerospace Science and Technology Corporation.
Can I watch the Long March 4B | Huiyan (HXMT (Hard X-ray Modulation Telescope)) 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.
LAUNCH TIMELINE
Mar 28, 2026 20:33 UTC
Launch added to tracker
Imported from Launch Library 2 API
Mar 28, 2026 20:33 UTC
Launch date set: Jun 15, 2017 at 03:00 UTC
NET (No Earlier Than) confirmed by China Aerospace Science and Technology Corporation
Mar 28, 2026 20:33 UTC
Launch completed successfully
Updated via Launch Library 2
LIVE DATA SOURCES
Last data sync: 14 seconds ago
●Launch Library 215 seconds ago
Launch ID: 5ee30bd6-70bc-4426-9be6-3af1327281ba
●Open-Meteo Weather3 hours ago
Pad weather at 40.96, 100.3
●YouTube Video Search5 days ago
2 videos discovered
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