Spacecraft information: COSMOS 409
| Launched | 27 April 1971 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 5180 |
| COSPAR ID | 1971-038A |
| Observing |
Current orbital elements
| Inclination | 74.003° |
| Eccentricity | 0.00227 |
| RA ascending node | 19.768 hr |
| Argument perigee | 178.011° |
| Mean anomaly | 249.982° |
| Orbital period | 109.269 min |
| Epoch of osculation | 07 Aug 2026, 07:34 |
Derived Quantities
| Min Altitude | 1182.9 km |
| Mean Altitude | 1200.1 km |
| Peak Altitude | 1217.3 km |
Launched alongside
SL-8 R/BOrbital History
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