Spacecraft information: ECHO 1 DEB
| Launched | 11 August 1960 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 53 |
| COSPAR ID | 1960-009E |
| Alternative names |
METAL OBJ |
| Observing |
Current orbital elements
| Inclination | 47.278° |
| Eccentricity | 0.01009 |
| RA ascending node | 4.383 hr |
| Argument perigee | 355.612° |
| Mean anomaly | 4.378° |
| Orbital period | 118.284 min |
| Epoch of osculation | 21 May 2026, 03:30 |
Derived Quantities
| Min Altitude | 1530.4 km |
| Mean Altitude | 1611.0 km |
| Peak Altitude | 1691.5 km |
Orbital History
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