Without a telescope
Not without a telescopeAt that distance even a satellite the size of a bus is far too faint for the naked eye. In a telescope it is a faint point that stays put while the stars drift past it.
Satellites›Geostationary satellites›SHIJIAN-21 (SJ-21)
SHIJIAN-21 (SJ-21)
SHIJIAN-21 (SJ-21) is a satellite from China, launched on October 24, 2021 from Xichang, China. It goes around once a day, in step with the turning Earth, about 35,786 km up, near longitude 128.6° E. Its orbit is tilted 5.5° to the equator, so instead of hanging still it drifts north and south of the same spot each day.
Where SHIJIAN-21 (SJ-21) is
The gold ring is its orbit, and the line drops to the point on the equator it stays over. Inside the white circle it is above the horizon, all day and all night. 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 the same on a flat map.
Finding SHIJIAN-21 (SJ-21)…
SHIJIAN-21 (SJ-21)
Finding SHIJIAN-21 (SJ-21)…
- Over
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- Position
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- Height
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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 is above the horizon all day and all night for everyone within about 81° of longitude 128.6° E on the equator, and always in the same part of their sky. From the rest of the world it never rises.
When it passes over you
The app shows where it sits in your own sky, and leads your telescope or your eye to the spot.
The facts
- Catalogue number (NORAD)
- 49330
- International designator
- 2021-094A
- Type
- Satellite
- Belongs to
- China
- Launched
- October 24, 2021
- Launched from
- Xichang, China
- Status
- Operational
- Orbit
- Geosynchronous, inclined
- Over longitude
- 128.6° E
- Lowest point
- 35,561 km
- Highest point
- 36,011 km
- Tilt to the equator
- 5.5°
- One lap
- 23 h 56 min
- Laps a day
- 1.00
- Speed
- 3.07 km/s
Orbit measured November 13, 2026, from CelesTrak. Heights are above the ground at the equator. Page updated November 14, 2026.
Quick answers
Where is SHIJIAN-21 (SJ-21) right now?
SHIJIAN-21 (SJ-21) stays over longitude 128.6° E, on the equator. The map on this page shows the spot, and the part of the Earth it can be seen from.
How high is SHIJIAN-21 (SJ-21)?
Between 35,561 km at its lowest and 36,011 km at its highest, above the ground.
How fast does SHIJIAN-21 (SJ-21) go?
About 3.07 km/s, which is 11,100 km/h. One lap of the Earth takes it 23 h 56 min, the same time the Earth takes to turn once.
Can you see SHIJIAN-21 (SJ-21) without a telescope?
Not without a telescope. At that distance even a satellite the size of a bus is far too faint for the naked eye. In a telescope it is a faint point that stays put while the stars drift past it.
When was SHIJIAN-21 (SJ-21) launched?
On October 24, 2021, from Xichang, China.
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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