NORAD 40143
YAOGAN 21
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
- -
Identity
- NORAD ID
- 40143
- International designator
- 2014-053A
- Launch date
- Sep 8, 2014
- Launch site
- Taiyaun Space Center, China
- Radar size (RCS)
- Large (over 1 m²)
Radio
- Uplink
- -
- Downlink
- 2,248.547 MHz · FM
- Beacon
- -
- Mode
- FM
Active transmitters from SatNOGS DB, licensed CC BY-SA 4.0.
Your station
- Grid locator
- -
Live
- Azimuth
- -
- Elevation
- -
- Range
- -
- Range rate
- -
- Naked-eye visibility
- -
- Sub-satellite grid
- -
- Footprint diameter
- -
Upcoming passes
Next 48 h · your local timeUse your location to predict passes.
Mutual visibility
With another station · next 48 hUse your location to find mutual windows.
Transmitters
Nominal · add location for DopplerS-band telemetry
Transmitter · FM
- Downlink
- 2,248.547 MHz
- CTCSS
- -
- Baud
- -
Recent receptions
SatNOGS Network-
Orbit data
- TLE epoch
- 2026-11-02 13:09:24 UTC
- TLE age
- -
Radio data from SatNOGS DB and SatNOGS Network, licensed CC BY-SA 4.0.
About YAOGAN 21
YAOGAN 21 is a satellite from China, launched on Sep 8, 2014 from Taiyaun Space Center, China.
It circles Earth every 94 minutes (15.3 times a day), between 478 and 487 km up, on an orbit tilted 97.1° to the equator, so its path covers latitudes up to 83° north and south.
The map shows where it is right now; the pass list tells you when it next comes over your location.
Yaogan 21 · satellite
Names and facts: Wikidata (CC0).
Orbit height over the past year
Over the last 22 days its lowest point went from 477 km to 478 km. Sudden rises are engine burns that lift the orbit; slow declines are drag from the thin upper atmosphere.
From Space-Track element sets, one point a day.