Without a telescope
BarelyOnly on its best passes and from a dark site: magnitude +4.6 at its best, at the limit of the naked eye. Binoculars make it easy.
Satellites›Brightest satellites›COSMOS 1833
COSMOS 1833
COSMOS 1833 is a satellite from Russia (and the former Soviet Union), launched on March 18, 1987 from Baikonur, Kazakhstan. It is in a low orbit, 832 to 866 km above the ground, and goes around the Earth every 101.9 minutes: 14.1 times a day, at 7.43 km/s (26,700 km/h).
Where COSMOS 1833 is right now
The gold ring is its orbit, and the line drops to the point on the ground under it. Inside the white circle it is above the horizon. Drag the globe to turn it, pinch or use the buttons to come closer; the target button brings you back to the satellite. The 2D map shows its path over the ground for the next lap: gold where it is in sunlight, dashed where it is in Earth’s shadow.
Finding COSMOS 1833…
COSMOS 1833
Finding COSMOS 1833…
- Over
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- Position
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- Speed
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- Now
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- Your time
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Can you see it?
From where
It passes straight overhead between latitudes 71° north and 71° south, and it rises above the horizon everywhere on Earth.
A satellite shows only when your sky is dark and it is still in sunlight: in the hours after dusk and before dawn.
When it passes over you
The app works out its passes over your exact location, alerts you before one, and leads you to it with an arrow in the camera view.
The facts
- Catalogue number (NORAD)
- 17589
- International designator
- 1987-027A
- Type
- Satellite
- Belongs to
- Russia (and the former Soviet Union)
- Launched
- March 18, 1987
- Launched from
- Baikonur, Kazakhstan
- Orbit
- Low Earth orbit
- Lowest point
- 832 km
- Highest point
- 866 km
- Tilt to the equator
- 70.9°
- One lap
- 101.9 minutes
- Laps a day
- 14.13
- Speed
- 7.43 km/s
- At its brightest
- mag +4.6 estimated, overhead
- Standard brightness
- mag +5.0 from 1,000 km, half lit
- Size on radar
- 4.1 m²
Orbit measured November 12, 2026, from CelesTrak. Heights are above the ground at the equator. Page updated November 14, 2026.
Quick answers
Where is COSMOS 1833 right now?
The map on this page shows where COSMOS 1833 is at this moment, the path it will follow over the ground for the next lap, and the part of the Earth it is above the horizon for. It is worked out from the latest tracking data.
How high is COSMOS 1833?
Between 832 km at its lowest and 866 km at its highest, above the ground.
How fast does COSMOS 1833 go?
About 7.43 km/s, which is 26,700 km/h. One lap of the Earth takes it 101.9 minutes, so it goes around 14.1 times a day.
Can you see COSMOS 1833 without a telescope?
Barely. Only on its best passes and from a dark site: magnitude +4.6 at its best, at the limit of the naked eye. Binoculars make it easy.
When was COSMOS 1833 launched?
On March 18, 1987, from Baikonur, Kazakhstan.
With the app
Knowing where it is over the Earth is one thing. The app shows you where it is in your sky.
This page follows the satellite around the planet. The app works out when it passes over you, and leads you to it.
- Every pass over your exact location, for this satellite and 10,000+ more.
- An alert before it rises, so you are outside in time.
- An arrow in the camera view that leads you to the exact spot in the sky.
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