Mitsubishi Heavy IndustriesH-IOsaki Launch Complex, Tanegashima Space Center, Japan
Yuri 3B
Launched
August 25, 1991
Summary
Yuri 3B launched on a Mitsubishi Heavy Industries H-I from Osaki Launch Complex, Tanegashima Space Center, Japan on August 25, 1991. It was Mitsubishi Heavy Industries's 8th launch, 1st this year and humanity's 3,659th orbital launch attempt. It was the 8th H-I flight and the 1st this year. The payload was bound for Geostationary Orbit (Direct-GEO). Yuri 3B, one of 3 catalogued objects, reached a 204 × 37,210 km orbit inclined 28.6°. 3 objects from this launch are catalogued, one of them a payload.
- Watch
- No webcast on record.
- Vehicle
- H-I · Mitsubishi Heavy Industries
- Booster
- No booster details on record.
- Mission
- Communications · Geostationary Orbit (Direct-GEO)
- Milestone
- 8th H-I flight · 1st this yearMitsubishi Heavy Industries's 8th launch1st this yearhumanity's 3,659th orbital launch attempt62nd orbital launch attempt this year
Flight preview
Orbit: as tracked
Yuri 3B · NORAD 21668 · 1991-060 · Space-Track · tracking 1 of 3 objects
Show the numbers for orbit elements
- Object
- BS-3B (YURI 3B)
- Object ID
- 1991-060A
- Epoch
- 1991-08-25 14:40:56 UTC
- Mean motion
- 2.18608154 rev/day
- Eccentricity
- 0.7378257
- Inclination
- 28.5619°
- Ascending node
- 137.403°
- Arg. of perigee
- 179.2282°
- Mean anomaly
- 182.6081°
- Element set
- 999
- Rev at epoch
- 1
- B*
- 0.000099999
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: Direct-GEO. Ascent drawn from padside's representative profile.
Catalogued objects
3 catalogued: 1 payload, 2 rocket stages; 1 still in orbit
- Yuri 3B · NORAD 21668 · in orbit
H-I-23F Stage 2 · re-entered September 7, 1991
H-I-23F Stage 3 · re-entered May 1, 1992
Data from J. McDowell, planet4589.org
About this launch
The BS-3 or Yuri 3 satellites were a series of Japanese direct broadcasting satellites.
Pad

Osaki Launch Complex, Tanegashima Space Center, Japan
23rd launch from Osaki Launch Complex, 1st this year · 23rd from Tanegashima Space Center, Japan
24 launches from this pad · 99 from Tanegashima Space Center, Japan
361 days after the previous launch from this pad
All launches from Tanegashima Space Center, JapanOpen in maps
Questions
When did Yuri 3B launch?
Yuri 3B launched on August 25, 1991. The time is known to the hour, not the minute.
Where can I watch Yuri 3B?
No webcast is on record for this launch.
What rocket launched Yuri 3B?
H-I, flown by Mitsubishi Heavy Industries. H-I spec sheet
Where did Yuri 3B launch from?
Osaki Launch Complex, Tanegashima Space Center, Japan.
What orbit did Yuri 3B reach?
Yuri 3B, one of 3 catalogued objects, reached a 204 × 37,210 km orbit inclined 28.6°.
How many satellites did Yuri 3B launch?
1 payload from this launch is catalogued, still in orbit (Data from J. McDowell, planet4589.org).
![[AUTO] H-1 - image](/media?u=https%3A%2F%2Fthespacedevs-prod.nyc3.digitaloceanspaces.com%2Fmedia%2Fimages%2Fh-1_image_20240210175424.png&w=1600)