☰ Satellite Tracker menu

ISS (ZARYA) (NORAD 25544)

ISS (ZARYA) is a space stations satellite (NORAD 25544) in a LEO orbit 415 by 424 km above the Earth, circling the planet every 93 minutes. Right now it is over latitude 4.9°, longitude 166.9° at an altitude of 424 km.

Live position and ground track (past 45 min, next 100 min)

Where is ISS (ZARYA) now?

Latitude: 4.904°
Longitude: 166.914°
Altitude: 423.9 km
Speed: 7.656 km/s
Footprint radius: 2264 km

Snapshot at page load. Updates every second when JavaScript is on.

Next passes over your location

Set your location to see the next passes.

Frequencies and modes

Link	Uplink	Downlink	Mode
Mode V APRS	145.825 MHz	145.825 MHz	AFSK
Mode V/V FM (crew R2+3)	144.49 MHz	145.8 MHz	FM
Mode V/V FM (crew R1)	145.2 MHz	145.8 MHz	FM
VHF-1 Soyuz Communication - FMN	—	143.625 MHz	FMN
VHF-2 Soyuz Communication - FMN	—	130.167 MHz	FMN
Soyuz / Orlan space suit	—	121.75 MHz	FM
Mystery transmitter 137.6257MHz	—	137.6257 MHz	CW
ISS CCSDS Data 1	—	2265 MHz	QPSK
IORS Telemetry	—	437.8 MHz	FSK
ICARUS Animal-Tracker Experiment	—	468.1 MHz	PSK
Control Module "Zarya"	—	632 MHz	FM
Service Module "Zvezda" (Upper side band)	—	630.128 MHz	FM
Mode U - Possibly Voice	—	435.4 MHz	FM
Suit 1	—	121.1 MHz	FM
Suit 2	—	121.275 MHz	FM
EMU Alt	—	417.1 MHz	FSK
Mode S1	—	2425 MHz	FM
Mode S2	—	2375 MHz	FM
EVA/WVS	—	400.575 MHz	FM
Rassvet	—	637.5 MHz	FM
CUCU (SpaceX COTS UHF Communication Unit)	—	400.5 MHz	BPSK
SpaceX Dragon Wideband Telemetry	—	2205.5 MHz	BPSK
SpaceX Dragon narrowband telemetry	—	2216 MHz	BPSK
SpaceX Falcon Wideband Telemetry	—	2213.5 MHz	BPSK
Suit 3	—	139.208 MHz	FMN
CW Soyuz-TM and Progress M1 beacon	—	922.75 MHz	FM
Soyuz-TM and Progress M-1 TLM	—	166 MHz	FM
Regul	—	922.763 MHz	CW
TORU S1	—	2860 MHz	AM
Toru S2	—	2725 MHz	AM
Kvant	—	768.975 MHz	FMN
Falcon 9 CCSDS 2272.5	—	2272.5 MHz	GMSK
Falcon 9 CCSDS 2232.5	—	2232.5 MHz	GMSK
EMU (695000)	—	414.2 MHz	FSK
Mode U - SSTV	—	437.8 MHz	SSTV
Mode S - HamTV DVB-S	—	2395 MHz	DVB-S2
Mode V/U FM - Voice Repeater CTCSS 67.0 Hz	145.99 MHz	437.8 MHz	FM
Mode V Imaging	—	145.8 MHz	SSTV
Mode U APRS test	437.825 MHz	437.825 MHz	AFSK
Mode U - SSTV - Robot-36	—	437.55 MHz	SSTV
Ku Band Digital Data Downlink	—	15003.4 MHz	QPSK

Frequencies are the nominal values from the SatNOGS database and can change. While the satellite is above your horizon the table shows the Doppler-corrected frequencies. For how to use them, read working amateur radio satellites.

Orbit and identity

25544NORAD catalog number

1998-067AInternational designator

Space stationsCategory

LEOOrbit class

92.96 minOrbital period

415 × 424 kmPerigee × apogee altitude

51.63°Inclination

0.000706Eccentricity

15.4912Revolutions per day

1998Launch year

In orbitStatus (SatNOGS)

NoneOperator

Orbital elements epoch: 2026-10-30T11:12:14 UTC (10 hours ago). Positions drift from reality as the elements age; fresh elements are fetched automatically.

Open on the live radar

More in Space stations

All space stations

Positions are computed from public orbital elements (CelesTrak / US Space Force 18th SDS) with the SGP4 model and are accurate to a few kilometres; amateur radio data from the SatNOGS DB (CC BY-SA). Not for navigation or safety-critical use. Method and limits · Radio coverage map · Live HF propagation data