OrbitNight

NORAD 2980

OPS 1264 (DMSP 4A F4)

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

Time

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Speed

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From your location

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Its orbit in 3D

Goes round Earth once every 98 minutes, on an orbit tilted 99.2° from the equator, between 673 and 821 km up. Earth is drawn to scale.

Drag to turn · pinch to zoom · it moves live

About OPS 1264 (DMSP 4A F4)

OPS 1264 (DMSP 4A F4) is a satellite from the United States, launched on Oct 11, 1967 from Air Force Western Test Range.

It circles Earth every 98 minutes (14.6 times a day), between 617 and 750 km up, on an orbit tilted 99.2° to the equator, so its path covers latitudes up to 81° north and south.

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

DMSP 4A/F4 · Meteorological satellite

Names and facts: Wikidata (CC0).

Orbit height over the past year

Over the last 9 days its lowest point went from 617 km to 617 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)
650700750

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