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Location: Greenwich
(51.4790°N, 0.0090°E)
Time: 17:02:54
(UTC+01:00)
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Vanguard 1 - Orbit

View from above orbital plane
View from above orbital plane
View from above satellite
View from above satellite

Ground track
Ground track

The orbit data is extracted from the following two-line orbital elements,

1     5U 58002B   25173.54799685 -.00000002  00000-0 -10669-4 0  9991
2     5  34.2585 344.3524 1841713 316.9515  30.0574 10.85927156404274
Epoch (UTC): 22 June 2025 13:09:06
Eccentricity: 0.1841713
inclination: 34.2585°
perigee height: 649 km
apogee height: 3822 km
right ascension of ascending node: 344.3524°
argument of perigee: 316.9515°
revolutions per day: 10.85927156
mean anomaly at epoch: 30.0574°
orbit number at epoch: 40427

The dashed part of the orbit path shows where the satellite is in the earth's shadow,  

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