NORAD 25544
ISS (ZARYA)
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
- 25544
- International designator
- 1998-067A
- Launch date
- Nov 20, 1998
- Launch site
- TYURATAM MISSILE AND SPACE COMPLEX
- Radar size (RCS)
- Large (over 1 m²)
Radio
- Uplink
- 144.490 MHz · FM145.200 MHz · FM145.825 MHz · AFSK
Show 2 moreShow less
145.990 MHz · FM437.825 MHz · AFSK - Downlink
- 121.100 MHz · FM121.275 MHz · FM121.750 MHz · FM
Show 37 moreShow less
130.167 MHz · FMN137.6257 MHz · CW139.208 MHz · FMN143.625 MHz · FMN145.800 MHz · FM145.800 MHz · SSTV145.825 MHz · AFSK166.000 MHz · FM400.500 MHz · BPSK400.575 MHz · FM414.200 MHz · FSK417.100 MHz · FSK435.400 MHz · FM437.550 MHz · SSTV437.800 MHz · FSK437.800 MHz · SSTV437.800 MHz · FM437.825 MHz · AFSK468.100 MHz · PSK630.128 MHz · FM632.000 MHz · FM637.500 MHz · FM768.975 MHz · FMN922.750 MHz · FM922.763 MHz · CW2,205.500 MHz · BPSK2,213.500 MHz · BPSK2,216.000 MHz · BPSK2,232.500 MHz · GMSK2,265.000 MHz · QPSK2,272.500 MHz · GMSK2,375.000 MHz · FM2,395.000 MHz · DVB-S22,425.000 MHz · FM2,725.000 MHz · AM2,860.000 MHz · AM15,003.400 MHz · QPSK - Beacon
- 922.750 MHz · FM
- Mode
- AFSK, AM, BPSK, CW, DVB-S2, FM, FMN, FSK, GMSK, PSK, QPSK, SSTV
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 DopplerMode V/U FM - Voice Repeater CTCSS 67.0 Hz
Transceiver · Amateur · FM
- Downlink
- 437.800 MHz
- Uplink
- 145.990 MHz
- CTCSS
- 67.0 Hz
- Baud
- -
Mode U APRS test
Transceiver · Amateur · AFSK
- Downlink
- 437.825 MHz
- Uplink
- 437.825 MHz
- CTCSS
- -
- Baud
- 1,200
Mode V Imaging
Transmitter · Amateur · SSTV
- Downlink
- 145.800 MHz
- CTCSS
- -
- Baud
- -
Recent receptions
SatNOGS Network-
Orbit data
- TLE epoch
- 2026-10-18 03:28:15 UTC
- TLE age
- -
Radio data from SatNOGS DB and SatNOGS Network, licensed CC BY-SA 4.0.
About ISS (ZARYA)
ISS (ZARYA) is a satellite from Russia (or the former Soviet Union), launched on Nov 20, 1998 from Tyuratam Missile and Space Complex.
It circles Earth every 93 minutes (15.5 times a day), between 415 and 424 km up, on an orbit tilted 51.6° to the equator, so its path covers latitudes up to 52° north and south.
The map shows where it is right now; the pass list tells you when it next comes over your location.
International Space Station · modular space station in low Earth orbit
- Operated by
- Roscosmos State Corporation, Japan Aerospace Exploration Agency, Canadian Space Agency, National Aeronautics and Space Administration, European Space Agency
- Mass
- 419,725 kg
Wikipedia article ↗ · Names and facts: Wikidata (CC0).
Orbit height over the past year
Over the last 366 days its lowest point went from 416 km to 415 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.