Spacecraft information: SECOR 8
| Launched | 4 October 1966 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 2520 |
| COSPAR ID | 1966-089B |
| Alternative names |
EGRS 8 |
| Observing |
Current orbital elements
| Inclination | 89.851° |
| Eccentricity | 0.00146 |
| RA ascending node | 2.108 hr |
| Argument perigee | 337.940° |
| Mean anomaly | 22.082° |
| Orbital period | 167.657 min |
| Epoch of osculation | 21 May 2026, 14:53 |
Derived Quantities
| Min Altitude | 3686.1 km |
| Mean Altitude | 3700.8 km |
| Peak Altitude | 3715.6 km |
Launched alongside
OPS 1920Orbital History
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