MISSION OVERVIEW
The ERG  (Exploration of energization and Radiation in Geospace) project is a mission to study the Van Allen belts. The task is to elucidate how highly charged electrons are born while they generate and vanish repeatedly along with space storms caused by the disturbance of solar wind, influenced by space storms, and how space storms are developed.
LAUNCH DETAILS
VEHICLE
EpsilonMISSION
ERG (Exploration of energization and Radiation in Geospace)
MISSION TYPE
Earth Science
TARGET ORBIT
Elliptical Orbit
LAUNCH PAD
Mu CenterLAUNCH SITE
Uchinoura Space Center, JapanCOUNTRY
JPN
LAUNCH TIME VERIFICATION
CONFIRMEDPrecision: Minute
LAUNCH LIBRARY 2 PRIMARY
API ID: abb2b8b8-c03e-435e-b501-4fd04609164c
Reported date: Dec 20, 2016 at 11:00 UTC
Last synced: 2 hours ago
This launch date and time are confirmed by the launch provider. Countdown is active.
LAUNCH MAP
PAD WEATHER
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VEHICLE — Epsilon →
MANUFACTURER
Japan Aerospace Exploration Agency
FLIGHTS
6
SUCCESSES
5
SUCCESS RATE
83.3%
The Epsilon rocket is a Japanese solid-fuel rocket designed to launch scientific satellites. It is a follow-on project to the larger and more expensive M-V rocket which was retired in 2006. The Japan Aerospace Exploration Agency (JAXA) began developing the Epsilon in 2007. It is capable of placing a 590 kg payload into Sun-synchronous orbit.
FREQUENTLY ASKED QUESTIONS
When is the Epsilon | ERG (ARASE) launch?
The Epsilon | ERG (ARASE) is scheduled for Tuesday, December 20, 2016 at 11:00 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 ERG (Exploration of energization and Radiation in Geospace)?
The Epsilon | ERG (ARASE) mission uses the Epsilon rocket, manufactured by Japan Aerospace Exploration Agency. The Epsilon has flown 6 times with a 83.3% success rate.
Where is the Epsilon | ERG (ARASE) launching from?
The launch takes place from Mu Center at Uchinoura Space Center, Japan.
What orbit is ERG (Exploration of energization and Radiation in Geospace) going to?
The ERG (Exploration of energization and Radiation in Geospace) mission is targeting Elliptical Orbit.
Who is launching ERG (Exploration of energization and Radiation in Geospace)?
The Epsilon | ERG (ARASE) is operated by Japan Aerospace Exploration Agency.
Can I watch the Epsilon | ERG (ARASE) 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: Dec 20, 2016 at 11:00 UTC
NET (No Earlier Than) confirmed by Japan Aerospace Exploration Agency
Mar 28, 2026 20:33 UTC
Launch completed successfully
Updated via Launch Library 2
LIVE DATA SOURCES
Last data sync: 2 hours ago
●Launch Library 22 hours ago
Launch ID: abb2b8b8-c03e-435e-b501-4fd04609164c
●Open-Meteo Weather2 hours ago
Pad weather at 31.25, 131.08
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