KOSEN-1
Mission information
Name
KOSEN-1
Alternate Names
JR5YGJ
Satellite ID
NJBJ-3838-9654-0508-8247
NORAD ID
49402
Website
http://space.kochi-ct.jp/kosen-1/
Country of Origin

Japan

Status
Satellite alive
Operational

Satellite is in orbit and operational

Image
KOSEN-1
Mission timeline
Launch Date
2021-11-09T00:00:00+00:00
Mode HF/U - Onboard SDR
Type
Transponder
Service
Amateur
Downlink Mode
AFSK
Downlink Frequency
435525000
Baud
1200
Uplink Mode
CW
Downlink High
435525000
Uplink Frequency
21125000
Uplink High
21150000
IARU Coordination
IARU Coordinated
Mode U - AFSK1k2
Type
Transmitter
Downlink Mode
AFSK
Downlink Frequency
435525000
Baud
1200
IARU Coordination
IARU Coordinated
Mode U - GMSK9k6
Type
Transmitter
Downlink Mode
GMSK
Downlink Frequency
435525000
Baud
9600
IARU Coordination
IARU Coordinated
Mode U - CW Beacon
Type
Transmitter
Downlink Mode
CW
Downlink Frequency
435525000
Baud
18
IARU Coordination
IARU Coordinated
Most Recent Observers (last 24h)
Observer Latest Data
Sofia SAT Club - Bay Ivan-KN22lx 2025-11-27 07:04:16 UTC
SONIKS: Station_109-KO16tx 2025-11-27 07:00:00 UTC
PV8DX-FJ92pt 2025-11-27 00:07:39 UTC
Drachten-JO33bc 2025-11-26 19:38:29 UTC
PE0SAT-12-JO21mr 2025-11-26 19:36:42 UTC
Data Frames Decoded - 30 Days
There is no decoded data for this satellite in the last 30 days.
Decoder: KOSEN-1 Telemetry
Script Name
kosen1
Decoder Fields
Click here
Orbital Elements
Latest Two-Line Element (TLE)
TLE Source
Space-Track.org
TLE Updated
2025-11-27 05:15:36 UTC
TLE Set
1 49402U 21102H   25330.67617513  .00010190  00000-0  43197-3 0  9992
2 49402 97.3494 11.9032 0014297 196.3661 163.7117 15.23227554223153
Satellite Suggestion History

Transmitter Suggestion History