OrbitNight

NORAD 6787

OPS 8364 (DMSP 4)

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

Time

Local time
-
-

Position

Latitude
-
Longitude
-
Altitude
-

Speed

Miles per hour
-
Kilometers per second
-
Miles per second
-

From your location

Azimuth
-
Elevation
-
Right ascension
-
Declination
-
Local sidereal time
-

Sunlight

Day / night
-

Its orbit in 3D

Goes round Earth once every 100 minutes, on an orbit tilted 98.5° from the equator, between 803 and 839 km up. Earth is drawn to scale.

Drag to turn · pinch to zoom · it moves live

About OPS 8364 (DMSP 4)

OPS 8364 (DMSP 4) is a satellite from the United States, launched on Aug 17, 1973 from Air Force Western Test Range.

It circles Earth every 100 minutes (14.3 times a day), between 761 and 798 km up, on an orbit tilted 98.5° 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 5B/F4 · Meteorological satellites

Names and facts: Wikidata (CC0).

Orbit height over the past year

Over the last 11 days its lowest point went from 760 km to 761 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)
760770780790800

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