OrbitNight

NORAD 3691

OPS 0757 (TACSAT)

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 23.9 hours, on an orbit tilted 3.2° from the equator, between 35,690 and 35,827 km up. Earth is drawn to scale.

Drag to turn · pinch to zoom · it moves live

About OPS 0757 (TACSAT)

OPS 0757 (TACSAT) is a satellite from the United States, launched on Feb 9, 1969 from Air Force Eastern Test Range.

It sits in geostationary orbit about 35,800 km above the equator near 66°E, turning with Earth so it stays over the same spot.

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

American communications satellite

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

Orbit height over the past year

Over the last 10 days its lowest point went from 35,640 km to 35,638 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)
35,65035,70035,75035,80035,850

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