National Space Development Agency of JapanN-2Osaki Launch Complex, Tanegashima Space Center, Japan
Momo 1a
Launched
February 19, 1987
Summary
Momo 1a launched on a National Space Development Agency of Japan N-2 from Osaki Launch Complex, Tanegashima Space Center, Japan on February 19, 1987. It was National Space Development Agency of Japan's 15th launch, 1st this year and humanity's 3,157th orbital launch attempt. It was the 8th N-2 flight and the 1st this year. The payload was bound for low Earth orbit (LEO). Momo, one of 2 catalogued objects, reached a 917 × 919 km orbit inclined 99.1°. 2 objects from this launch are catalogued, one of them a payload.
- Watch
- No webcast on record.
- Booster
- No booster details on record.
- Mission
- Earth Science · Low Earth Orbit (LEO)
- Milestone
- 8th N-2 flight · 1st this yearNational Space Development Agency of Japan's 15th launch1st this yearhumanity's 3,157th orbital launch attempt18th orbital launch attempt this year
Flight preview
Orbit: as tracked
Momo · NORAD 17527 · 1987-018 · Space-Track · tracking 1 of 2 objects
Show the numbers for orbit elements
- Object
- MOS 1A (MOMO 1)
- Object ID
- 1987-018A
- Epoch
- 1987-02-19 23:06:27 UTC
- Mean motion
- 13.9501401 rev/day
- Eccentricity
- 0.0001053
- Inclination
- 99.0982°
- Ascending node
- 120.8076°
- Arg. of perigee
- 356.4957°
- Mean anomaly
- 3.5388°
- Element set
- 999
- Rev at epoch
- 12
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: LEO.
Catalogued objects
2 catalogued: 1 payload, 1 rocket stage; 2 still in orbit
- Momo · NORAD 17527 · in orbit
N-II-16F Stage 2 · in orbit
Data from J. McDowell, planet4589.org
About this launch
Japanese Earth observation satellite
Pad

Osaki Launch Complex, Tanegashima Space Center, Japan
16th launch from Osaki Launch Complex, 1st this year · 16th from Tanegashima Space Center, Japan
24 launches from this pad · 99 from Tanegashima Space Center, Japan
190 days after the previous launch from this pad
All launches from Tanegashima Space Center, JapanOpen in maps
Questions
When did Momo 1a launch?
Momo 1a launched on February 19, 1987. The time is known to the hour, not the minute.
Where can I watch Momo 1a?
No webcast is on record for this launch.
What rocket launched Momo 1a?
N-2, flown by National Space Development Agency of Japan. N-2 spec sheet
Where did Momo 1a launch from?
Osaki Launch Complex, Tanegashima Space Center, Japan.
What orbit did Momo 1a reach?
Momo, one of 2 catalogued objects, reached a 917 × 919 km orbit inclined 99.1°.
How many satellites did Momo 1a launch?
1 payload from this launch is catalogued, still in orbit (Data from J. McDowell, planet4589.org).