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
Drachten-JO33bc 2026-01-06 19:10:46 UTC
DEX-ONE-JO20ul 2026-01-06 19:10:09 UTC
M0ZJO Ground Station - AHT-IO91sf 2026-01-06 19:09:31 UTC
F6FKQ-UHF-JN08rl 2026-01-06 19:08:58 UTC
GS ChNord UHF-JO10kq 2026-01-06 19:08:58 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
2026-01-05 19:15:17 UTC
TLE Set
1 49402U 21102H   26005.60585818  .00011878  00000-0  48997-3 0  9994
2 49402 97.3428 51.0004 0015986 64.5820 295.7070 15.24087371229234
Satellite Suggestion History

Transmitter Suggestion History