OrbitNight

NORAD 6206

COSMOS 521

In orbit
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Computing position…
Blue circle: where it is above the horizon now

Time

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Position

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Longitude
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Altitude
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Speed

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Kilometers per second
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Miles per second
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From your location

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Local sidereal time
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Sunlight

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Its orbit in 3D

Goes round Earth once every 105 minutes, on an orbit tilted 65.8° from the equator, between 986 and 1,019 km up. Earth is drawn to scale.

Drag to turn · pinch to zoom · it moves live

About COSMOS 521

COSMOS 521 is a satellite from Russia (or the former Soviet Union), launched on Sep 29, 1972 from Plesetsk Missile and Space Complex.

It circles Earth every 105 minutes (13.7 times a day), between 980 and 1,001 km up, on an orbit tilted 65.8° to the equator, so its path covers latitudes up to 66° north and south.

The map shows where it is right now; the pass list tells you when it next comes over your location.

Kosmos 521 · soviet satellite

Built by
Pivdenne Design Office

Wikipedia article ↗ · Names and facts: Wikidata (CC0).

Orbit height over the past year

Over the last 11 days its lowest point went from 980 km to 980 km. Sudden rises are engine burns that lift the orbit; slow declines are drag from the thin upper atmosphere.

Lowest point (perigee)Highest point (apogee)
9809859909951,000

From Space-Track element sets, one point a day.