ISS
Mission information
Name
ISS
Alternate Names
ZARYA
Satellite ID
XSKZ-5603-1870-9019-3066
NORAD ID
25544
Website
https://www.nasa.gov/mission_pages/station/main/index.html
Countries of Origin

Russia

United States of America

Status
Satellite alive
Operational

Satellite is in orbit and operational

Image
ISS
Mission timeline
Launch Date
1998-11-20T00:00:00+00:00
Description

The Zarya (Dawn) module was the first module of the international space station. This large multi-module eart orbiting space station is used as a long term research station and is manned. Built as a collaboration between Russia and the USA it is regularly seen in the night sky.

SatNOGS Links
Network Observations
Mode V APRS
Operational
Copy UUID Citation
Type
Transceiver
Downlink Mode
AFSK
Downlink Frequency
145.825 MHz
Baud
1200
Uplink Mode
AFSK
Uplink Frequency
145.825 MHz
Updated by fredy and reviewed on 2019-06-16 08:49 by fredy
Mode V/V FM (crew R2+3)
Operational
Copy UUID Citation
Type
Transceiver
Downlink Mode
FM
Downlink Frequency
145.800 MHz
Uplink Mode
FM
Uplink Frequency
144.490 MHz
Updated by fredy and reviewed on 2019-06-16 08:49 by fredy
Mode V/V FM (crew R1)
Operational
Copy UUID Citation
Type
Transceiver
Downlink Mode
FM
Downlink Frequency
145.800 MHz
Uplink Mode
FM
Uplink Frequency
145.200 MHz
Updated by fredy and reviewed on 2019-06-16 08:49 by fredy
TEMP Off-Frequency SSTV
Malfunctioning
Copy UUID Citation
Type
Transmitter
Downlink Mode
SSTV
Downlink Frequency
145.480 MHz
Updated by fredy and reviewed on 2019-06-16 10:00 by fredy
VHF-1 Soyuz Communication - FMN
Operational
Copy UUID Citation
Type
Transmitter
Downlink Mode
FMN
Downlink Frequency
143.625 MHz
Updated by fredy and reviewed on 2019-06-16 10:00 by fredy
VHF-2 Soyuz Communication - FMN
Operational
Copy UUID Citation
Type
Transmitter
Downlink Mode
FMN
Downlink Frequency
130.167 MHz
Updated by fredy and reviewed on 2019-06-16 10:00 by fredy
Tomsk-TPU-120
Malfunctioning
Copy UUID Citation
Type
Transmitter
Downlink Mode
FM
Downlink Frequency
437.023 MHz
Updated by fredy and reviewed on 2019-06-16 10:21 by fredy
Tanusha FM
Malfunctioning
Copy UUID Citation
Type
Transmitter
Downlink Mode
FM
Downlink Frequency
437.050 MHz
Updated by fredy and reviewed on 2019-06-16 10:21 by fredy
Soyuz / Orlan space suit
Operational
Copy UUID Citation
Type
Transmitter
Downlink Mode
FM
Downlink Frequency
121.750 MHz
Updated by kj6dzb and reviewed on 2019-10-22 14:35 by fredy
Mystery transmitter 137.6257MHz
Operational
Copy UUID Citation
Type
Transmitter
Downlink Mode
CW
Downlink Frequency
137.626 MHz
Updated by fredy and reviewed on 2020-03-19 16:41 by fredy
ISS CCSDS Data 1
Operational
Copy UUID Citation
Type
Transmitter
Service
Aeronautical
Downlink Mode
QPSK
Downlink Frequency
2265.000 MHz
Updated by pierros and reviewed on 2020-06-28 18:10 by pierros
Mode V/U FM - Voice Repeater
Operational
Copy UUID Citation
Type
Transceiver
Service
Amateur
Downlink Mode
FM
Downlink Frequency
437.800 MHz
Uplink Mode
FM
Uplink Frequency
145.990 MHz
Updated by fredy and reviewed on 2020-09-03 13:14 by fredy
Mode V/V APRS
Malfunctioning
Copy UUID Citation
Type
Transceiver
Service
Amateur
Downlink Mode
AFSK
Downlink Frequency
145.825 MHz
Baud
1200
Uplink Mode
AFSK
Uplink Frequency
145.825 MHz
Updated by davew8aas and reviewed on 2020-09-15 19:55 by pierros
IORS Telemetry
Operational
Copy UUID Citation
Type
Transmitter
Service
Amateur
Downlink Mode
FSK
Downlink Frequency
437.800 MHz
Baud
9600
Updated by pierros and reviewed on 2020-09-15 19:59 by pierros
ICARUS Animal-Tracker Experiment
Operational
Copy UUID Citation
Type
Transmitter
Service
Radiolocation
Downlink Mode
PSK
Downlink Frequency
468.100 MHz
Baud
656
Updated by fredy and reviewed on 2020-10-06 06:59 by fredy
UHF School Contact Downlink (Backup During SSTV event)
Malfunctioning
Copy UUID Citation
Type
Transmitter
Service
Amateur
Downlink Mode
FM
Downlink Frequency
437.525 MHz
Updated by fredy and reviewed on 2021-06-27 19:12 by fredy
Control Module "Zarya"
Operational
Copy UUID Citation
Type
Transmitter
Downlink Mode
FM
Downlink Frequency
632.000 MHz
Updated by fredy and reviewed on 2021-07-26 13:17 by fredy
Service Module "Zvezda" (Upper side band)
Operational
Copy UUID Citation
Type
Transmitter
Downlink Mode
FM
Downlink Frequency
630.128 MHz
Updated by eelkevisser and reviewed on 2021-08-13 12:37 by pierros
Mode U - Possibly Voice
Operational
Copy UUID Citation
Type
Transmitter
Downlink Mode
FM
Downlink Frequency
435.400 MHz
Updated by fredy and reviewed on 2022-06-06 19:52 by fredy
Suit 1
Operational
Copy UUID Citation
Type
Transmitter
Downlink Mode
FM
Downlink Frequency
121.100 MHz
Updated by ENSFNM and reviewed on 2022-08-16 13:27 by fredy
Suit 2
Operational
Copy UUID Citation
Type
Transmitter
Downlink Mode
FM
Downlink Frequency
121.275 MHz
Updated by ENSFNM and reviewed on 2022-08-16 13:28 by fredy
Mode U/V FM Voice
Malfunctioning
Copy UUID Citation
Type
Transceiver
Downlink Mode
FM
Downlink Frequency
145.800 MHz
Uplink Mode
FM
Uplink Frequency
437.800 MHz
Updated by etbusch and reviewed on 2022-08-16 13:28 by fredy
Mode U APRS Digi
Malfunctioning
Copy UUID Citation
Type
Transceiver
Downlink Mode
AFSK
Downlink Frequency
437.550 MHz
Baud
1200
Uplink Mode
AFSK
Uplink Frequency
437.550 MHz
Updated by etbusch and reviewed on 2022-08-16 13:28 by fredy
EMU Alt
Operational
Copy UUID Citation
Type
Transmitter
Downlink Mode
FSK
Downlink Frequency
417.100 MHz
Baud
695
Updated by ENSFNM and reviewed on 2022-12-19 16:19 by fredy
Mode S1
Operational
Copy UUID Citation
Type
Transmitter
Downlink Mode
FM
Downlink Frequency
2425.000 MHz
Updated by ENSFNM and reviewed on 2023-01-01 16:24 by fredy
Mode S2
Operational
Copy UUID Citation
Type
Transmitter
Downlink Mode
FM
Downlink Frequency
2375.000 MHz
Updated by ENSFNM and reviewed on 2023-01-01 16:24 by fredy
EVA/WVS
Operational
Copy UUID Citation
Type
Transmitter
Service
Inter-satellite
Downlink Mode
FM
Downlink Frequency
400.575 MHz
Updated by ENSFNM and reviewed on 2023-01-01 16:24 by fredy
Rassvet
Operational
Copy UUID Citation
Type
Transmitter
Downlink Mode
FM
Downlink Frequency
637.500 MHz
Updated by ENSFNM and reviewed on 2023-01-01 16:24 by fredy
CUCU (SpaceX COTS UHF Communication Unit)
Operational
Copy UUID Citation
Type
Transmitter
Service
Inter-satellite
Downlink Mode
BPSK
Downlink Frequency
400.500 MHz
Baud
1536
Updated by ENSFNM and reviewed on 2023-02-17 09:46 by fredy
SpaceX Dragon Wideband Telemetry
Operational
Copy UUID Citation
Type
Transmitter
Downlink Mode
BPSK
Downlink Frequency
2205.500 MHz
Updated by ENSFNM and reviewed on 2023-02-17 09:46 by fredy
SpaceX Dragon narrowband telemetry
Operational
Copy UUID Citation
Type
Transmitter
Downlink Mode
BPSK
Downlink Frequency
2216.000 MHz
Updated by ENSFNM and reviewed on 2023-02-17 09:46 by fredy
SpaceX Falcon Wideband Telemetry
Operational
Copy UUID Citation
Type
Transmitter
Downlink Mode
BPSK
Downlink Frequency
2213.500 MHz
Updated by ENSFNM and reviewed on 2023-02-17 09:46 by fredy
Suit 3
Operational
Copy UUID Citation
Type
Transmitter
Service
Aeronautical
Downlink Mode
FMN
Downlink Frequency
139.208 MHz
Updated by ENSFNM and reviewed on 2023-08-09 17:24 by fredy
CW Soyuz-TM and Progress M1 beacon
Operational
Copy UUID Citation
Type
Transmitter
Service
Radionavigational
Downlink Mode
FM
Downlink Frequency
922.750 MHz
Updated by ENSFNM and reviewed on 2023-08-23 10:47 by fredy
Soyuz-TM and Progress M-1 TLM
Operational
Copy UUID Citation
Type
Transmitter
Service
Inter-satellite
Downlink Mode
FM
Downlink Frequency
166.000 MHz
Updated by ENSFNM and reviewed on 2023-08-23 10:47 by fredy
Regul
Operational
Copy UUID Citation
Type
Transmitter
Service
Inter-satellite
Downlink Mode
CW
Downlink Frequency
922.763 MHz
Updated by fredy and reviewed on 2023-08-23 10:54 by fredy
TORU S1
Operational
Copy UUID Citation
Type
Transmitter
Downlink Mode
AM
Downlink Frequency
2860.000 MHz
Updated by fredy and reviewed on 2023-08-23 10:58 by fredy
Toru S2
Operational
Copy UUID Citation
Type
Transmitter
Downlink Mode
AM
Downlink Frequency
2725.000 MHz
Updated by fredy and reviewed on 2023-08-23 10:58 by fredy
Kvant
Operational
Copy UUID Citation
Type
Transmitter
Downlink Mode
FMN
Downlink Frequency
768.975 MHz
Updated by fredy and reviewed on 2023-08-23 11:00 by fredy
Falcon 9 CCSDS 2272.5
Operational
Copy UUID Citation
Type
Transmitter
Service
Aeronautical
Downlink Mode
GMSK
Downlink Frequency
2272.500 MHz
Updated by ENSFNM and reviewed on 2023-08-29 12:02 by fredy
Falcon 9 CCSDS 2232.5
Operational
Copy UUID Citation
Type
Transmitter
Service
Aeronautical
Downlink Mode
GMSK
Downlink Frequency
2232.500 MHz
Updated by ENSFNM and reviewed on 2023-08-29 12:02 by fredy
EMU (695000)
Operational
Copy UUID Citation
Type
Transmitter
Service
Inter-satellite
Downlink Mode
FSK
Downlink Frequency
414.200 MHz
Updated by fredy and reviewed on 2023-10-13 08:28 by fredy
Mode U - SSTV
Operational
Copy UUID Citation
Type
Transmitter
Service
Amateur
Downlink Mode
SSTV
Downlink Frequency
437.800 MHz
IARU Coordination
IARU Coordinated
Updated by PE0SAT and reviewed on 2023-12-26 16:24 by PE0SAT
Mode S - HamTV DVB-S
Operational
Copy UUID Citation
Type
Transmitter
Downlink Mode
DVB-S2
Downlink Frequency
2395.000 MHz
Updated by ENSFNM and reviewed on 2024-04-05 08:02 by fredy
Mode V Imaging
Malfunctioning
Copy UUID Citation
Type
Transmitter
Service
Amateur
Downlink Mode
SSTV
Downlink Frequency
145.800 MHz
Updated by fredy and reviewed on 2025-01-22 14:04 by fredy
Mode PD120 FRAM2 Ham ISS simulation
Malfunctioning
Copy UUID Citation
Type
Transmitter
Service
Amateur
Downlink Mode
SSTV
Downlink Frequency
437.550 MHz
Updated by fredy and reviewed on 2025-02-17 23:02 by fredy
Mode U - Imaging
Malfunctioning
Copy UUID Citation
Type
Transmitter
Downlink Mode
SSTV
Downlink Frequency
437.800 MHz
Updated by fredy and reviewed on 2025-02-24 22:30 by fredy
Most Recent Observers (last 24h)
Observer Latest Data
LU6APA - GAP Station I-GF05tj 2025-04-07 01:06:57 UTC
W2MMD GCARC Clubhouse-FM29jr 2025-04-06 21:33:49 UTC
W6MSU V-CM98hb 2025-04-06 18:10:45 UTC
M7RED-IM98qb 2025-04-06 16:58:05 UTC
DL7NDR-JN48ap 2025-04-06 16:55:27 UTC
Data Frames Decoded - 30 Days
There is no decoded data for this satellite in the last 30 days.
Decoder: ISS AX.25
Script Name
iss
Decoder Fields
Click here
Orbital Elements
Latest Two-Line Element (TLE)
TLE Source
Celestrak (SatNOGS)
TLE Updated
2025-04-06 23:54:32 UTC
TLE Set 
1 25544U 98067A   25096.87866316  .00015471  00000+0  28528-3 0  9992
2 25544  51.6390 300.1961 0004932  19.0955 358.4279 15.49306890504106
No Satellite Suggestions Found