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Spacecraft information: COSMOS 684
Launch Details
| Launched | 18 September 1974 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 7442 |
| COSPAR ID | 1974-072H |
| Observing |
Current orbital elements
| Inclination | 74.036° |
| Eccentricity | 0.00329 |
| RA ascending node | 13.049 hr |
| Argument perigee | 330.490° |
| Mean anomaly | 95.794° |
| Orbital period | 114.675 min |
| Epoch of osculation | 10 Mar 2026, 11:21 |
Derived Quantities
| Min Altitude | 1422.1 km |
| Mean Altitude | 1447.8 km |
| Peak Altitude | 1473.5 km |
Launched alongside
COSMOS 677 COSMOS 678 COSMOS 679 COSMOS 680 COSMOS 681 COSMOS 682 COSMOS 683 SL-8 R/BOrbital History
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