Spacecraft information: KYOKKO
| Launched | 3 February 1978 |
| Flight ended | – |
| Status | Non-operational |
| Launch site | Uchinoura Space Center (Fomerly Kagoshima Space Center-University of Tokyo, Japan) |
| Owner | Japan |
| NORAD ID | 10664 |
| COSPAR ID | 1978-014A |
| Alternative names |
EXOS-A |
| Observing |
Current orbital elements
| Inclination | 65.372° |
| Eccentricity | 0.18983 |
| RA ascending node | 3.541 hr |
| Argument perigee | 34.445° |
| Mean anomaly | 336.596° |
| Orbital period | 133.842 min |
| Epoch of osculation | 26 Mar 2026, 07:32 |
Derived Quantities
| Min Altitude | 651.1 km |
| Mean Altitude | 2296.4 km |
| Peak Altitude | 3941.8 km |
Launched alongside
M-3H R/B KYOKKO 1 DEB KYOKKO 1 DEB KYOKKO 1 DEB KYOKKO 1 DEB KYOKKO 1 DEB KYOKKO 1 DEBOrbital History
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