NATIONAL SPACE DEVELOPMENT AGENCY OF JAPAN

N-2 | Momo 1a

SUCCESS N-2 →
Feb 19, 1987 at 01:23 UTC
Low Earth Orbit Earth Science Tanegashima Space Center, Japan 100% success
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Mission Control3D trajectory · Live telemetry · AI narrator · Booster tracking
PADOsaki Launch Complex
SITETanegashima Space Center, Japan →
ORBITLow Earth Orbit
TYPEEarth Science

Japanese Earth observation satellite

VEHICLE
N-2
AGENCY
National Space Development Agency of Japan
MISSION
Momo 1a
MISSION TYPE
Earth Science
TARGET ORBIT
Low Earth Orbit
LAUNCH PAD
Osaki Launch Complex
COUNTRY
JPN
CONFIRMEDPrecision: Minute
LAUNCH LIBRARY 2 PRIMARY
API ID: ff1e3cf8-da08-41ad-a960-edf1199b8fbf
Reported date: Feb 19, 1987 at 01:23 UTC
Last synced: 19 minutes ago
This launch date and time are confirmed by the launch provider. Countdown is active.
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MANUFACTURER
Mitsubishi Heavy Industries
VARIANT
2
FLIGHTS
8
SUCCESSES
8
SUCCESS RATE
100%

The N-II or N-2 was a derivative of the American Delta rocket, produced under licence in Japan. It replaced the N-I-rocket in Japanese use. It used a Thor-ELT first stage, a Delta-F second stage, nine Castor SRMs, and on most flights either a Star-37E or Burner-2 upper stage, identical to the US Delta 0100 series configurations. Eight were launched between 1981 and 1987, before it was replaced by the H-I, which featured Japanese-produced upper stages. All eight launches were successful.

When is the N-2 | Momo 1a launch?
The N-2 | Momo 1a is scheduled for Thursday, February 19, 1987 at 1:23 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 Momo 1a?
The N-2 | Momo 1a mission uses the N-2 rocket, manufactured by Mitsubishi Heavy Industries. The N-2 has flown 8 times with a 100% success rate.
Where is the N-2 | Momo 1a launching from?
The launch takes place from Osaki Launch Complex at Tanegashima Space Center, Japan.
What orbit is Momo 1a going to?
The Momo 1a mission is targeting Low Earth Orbit.
Who is launching Momo 1a?
The N-2 | Momo 1a is operated by National Space Development Agency of Japan.
Can I watch the N-2 | Momo 1a 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 29, 2026 05:33 UTC
Launch added to tracker
Imported from Launch Library 2 API
Mar 29, 2026 05:33 UTC
Launch date set: Feb 19, 1987 at 01:23 UTC
NET (No Earlier Than) confirmed by National Space Development Agency of Japan
Mar 29, 2026 05:33 UTC
Launch completed successfully
Updated via Launch Library 2
Last data sync: 19 minutes ago
Launch Library 219 minutes ago
Launch ID: ff1e3cf8-da08-41ad-a960-edf1199b8fbf
Open-Meteo Weather2 days ago
Pad weather at 30.4, 130.97

Mission Profile

Momo 1a was a N-2 mission operated by National Space Development Agency of Japan that lifted off from Osaki Launch Complex, Tanegashima Space Center, Japan on February 19, 1987. The flight carried its payload on a earth science mission to Low Earth Orbit. The launch was a success.