JAPAN

Lambda-4S | Ohsumi

SUCCESSFeb 11, 1970 at 04:25 UTCLambda-4S →

Japan’s first satellite, making Japan the fourth nation to independently launch a satellite into orbit. Small scientific satellite weighing 38 kg.

VEHICLE
Lambda-4S
AGENCY
Japan
TARGET ORBIT
LEO
CONFIRMED
This launch date and time are confirmed by the launch provider. Countdown is active.
When is the Lambda-4S | Ohsumi launch?
The Lambda-4S | Ohsumi is scheduled for Wednesday, February 11, 1970 at 4:25 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 Lambda-4S | Ohsumi?
The Lambda-4S | Ohsumi mission uses the Lambda-4S rocket.
Where is the Lambda-4S | Ohsumi launching from?
The launch takes place from Kagoshima Space Center.
What orbit is Lambda-4S | Ohsumi going to?
The Lambda-4S | Ohsumi mission is targeting LEO.
Who is launching Lambda-4S | Ohsumi?
The Lambda-4S | Ohsumi is operated by Japan.
Can I watch the Lambda-4S | Ohsumi 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.
Mar 28, 2026 20:52 UTC
Launch added to tracker
Imported from Launch Library 2 API
Mar 28, 2026 20:52 UTC
Launch date set: Feb 11, 1970 at 04:25 UTC
NET (No Earlier Than) confirmed by Japan
Mar 28, 2026 20:52 UTC
Launch completed successfully
Updated via Launch Library 2
Last data sync: 33 seconds ago