OrbitNight

NORAD 20473

STTW-4

📡 Radar viewIn 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 14.1° from the equator, between 35,794 and 35,818 km up. Earth is drawn to scale.

Drag to turn · pinch to zoom · it moves live

About STTW-4

STTW-4 is a satellite from China, launched on Feb 4, 1990 from Xichang Space Center, China.

It sits in geostationary orbit about 35,800 km above the equator near 91°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.

Dongfanghong-2A 4 · Chinese communications satellite

Names and facts: Wikidata (CC0).

Orbit height over the past year

Over the last 17 days its lowest point went from 35,783 km to 35,786 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)
35,79035,80035,810

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