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 | 65.364° |
| Eccentricity | 0.19058 |
| RA ascending node | 13.306 hr |
| Argument perigee | 0.483° |
| Mean anomaly | 359.743° |
| Orbital period | 133.841 min |
| Epoch of osculation | 13 Aug 2026, 02:38 |
Derived Quantities
| Min Altitude | 644.5 km |
| Mean Altitude | 2296.3 km |
| Peak Altitude | 3948.2 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
Drag the graphs below left or right to change the time range, or use your scroll wheel to zoom in or out.