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NORAD 38339

SDS-4

📡 Radar viewIn orbit
Tap to zoom and pan
Computing position…
Blue circle: where it is above the horizon now

Time

Local time
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Position

Latitude
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Longitude
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Altitude
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Speed

Miles per hour
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Kilometers per second
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Miles per second
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From your location

Azimuth
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Elevation
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Right ascension
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Declination
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Local sidereal time
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Sunlight

Day / night
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Its orbit in 3D

Goes round Earth once every 98 minutes, on an orbit tilted 98.1° from the equator, between 689 and 710 km up. Earth is drawn to scale.

Drag to turn · pinch to zoom · it moves live

About SDS-4

SDS-4 is a satellite from Japan, launched on May 17, 2012 from Tanegashima Space Center.

It circles Earth every 98 minutes (14.8 times a day), between 638 and 646 km up, on an orbit tilted 98.1° to the equator, so its path covers latitudes up to 82° north and south.

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

SDS-4 · Japanese small satellite

Operated by
Japan Aerospace Exploration Agency
Mass
50 kg

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

Orbit height over the past year

Over the last 22 days its lowest point went from 638 km to 638 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)
638640642644646

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