Without a telescope
BarelyOnly on its best passes and from a dark site: magnitude +5.1 at its best, at the limit of the naked eye. Binoculars make it easy.
Satellites›Weather satellites›NOAA-21
NOAA-21
NOAA-21 is a weather satellite from the United States, launched on November 10, 2022 from Vandenberg, California, United States. It is in a low orbit, 827 km above the ground, and goes around the Earth every 101.4 minutes: 14.2 times a day, at 7.44 km/s (26,800 km/h). The orbit is sun-synchronous: it crosses every place at about the same local time of day.
Where NOAA-21 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 NOAA-21…
NOAA-21
Finding NOAA-21…
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About NOAA-21
The second satellite of the United States’ current series of polar weather satellites, launched in November 2022. It flies the same orbit as NOAA-20 and Suomi NPP, half a lap apart, so that between them every place is measured several times a day.
Can you see it?
From where
Its orbit crosses close to both poles, so sooner or later it passes over every place 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)
- 54234
- International designator
- 2022-150A
- Name in the catalogue
- NOAA 21 (JPSS-2)
- Type
- Satellite
- Belongs to
- United States
- Launched
- November 10, 2022
- Launched from
- Vandenberg, California, United States
- Status
- Operational
- Orbit
- Low Earth orbit, sun-synchronous
- Lowest point
- 825 km
- Highest point
- 829 km
- Tilt to the equator
- 98.7°
- One lap
- 101.4 minutes
- Laps a day
- 14.20
- Speed
- 7.44 km/s
- At its brightest
- mag +5.1 estimated, overhead
- Standard brightness
- mag +5.5 from 1,000 km, half lit
Orbit measured November 13, 2026, from CelesTrak. Heights are above the ground at the equator. Page updated November 14, 2026.
Quick answers
Where is NOAA-21 right now?
The map on this page shows where NOAA-21 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 NOAA-21?
About 827 km above the ground.
How fast does NOAA-21 go?
About 7.44 km/s, which is 26,800 km/h. One lap of the Earth takes it 101.4 minutes, so it goes around 14.2 times a day.
Can you see NOAA-21 without a telescope?
Barely. Only on its best passes and from a dark site: magnitude +5.1 at its best, at the limit of the naked eye. Binoculars make it easy.
When was NOAA-21 launched?
On November 10, 2022, from Vandenberg, California, United States.
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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