Ten-Koh 2
Mission information
Name
Ten-Koh 2
Alternate Names
てんこう２, JS1YKI
Satellite ID
BLJD-2583-9512-2426-1509
NORAD ID
68261
Website
https://aero.cst.nihon-u.ac.jp/okuyama/ten-koh-2/
Country of Origin

Japan

Status
Satellite in orbit
Operational

Satellite is in orbit

Reception
Status
Unknown
Image
Ten-Koh 2
Mission timeline
Launch Date
2025-10-21T00:00:00+00:00
Deploy Date
2026-03-11T09:35:00+00:00
Description

Photo and picture downlink V/U Linear Transponder (40 kHz) Digitalker 4k8 - 38k4 FSK CW 5.8 GHz

Will be deployed from HTV-X after its departing from ISS

SatNOGS Links
Network Observations
V/U Linear Transponder
Copy UUID Citation
Type
Transponder
Service
Amateur
Downlink Mode
USB
Downlink Low Frequency
435875000
Downlink High Frequency
435915000
Uplink Mode
LSB
Uplink Low Frequency
145895000
Uplink High Frequency
145895000
IARU Coordination
IARU Coordinated
Updated by dl7ndr and reviewed on 2025-08-31 13:25 by fredy
CW
Copy UUID Citation
Type
Transmitter
Service
Amateur
Downlink Mode
CW
Downlink Frequency
5839000000.0
IARU Coordination
IARU Coordinated
ITU Notifications
ITU Notified [Link 1]
Updated by fredy and reviewed on 2026-03-11 10:59 by fredy
CW
Copy UUID Citation
Type
Transmitter
Service
Amateur
Downlink Mode
CW
Downlink Frequency
435860000.0
IARU Coordination
IARU Coordinated
ITU Notifications
ITU Notified [Link 1]
Updated by fredy and reviewed on 2026-03-11 11:03 by fredy
Mode U - GMSK4k8 - Telemetry, Photos, Pictures
Copy UUID Citation
Type
Transmitter
Service
Amateur
Downlink Mode
GMSK
Downlink Frequency
435895000.0
Baud
4800
IARU Coordination
IARU Coordinated
ITU Notifications
ITU Notified [Link 1]
Updated by fredy and reviewed on 2026-03-13 15:46 by fredy
Mode U - FM - Digitalker
Copy UUID Citation
Type
Transmitter
Service
Amateur
Downlink Mode
FM
Downlink Frequency
435860000.0
IARU Coordination
IARU Coordinated
ITU Notifications
ITU Notified [Link 1]
Updated by fredy and reviewed on 2026-03-13 15:47 by fredy
Mode U - GMSK9k6 - Transmitter
Copy UUID Citation
Type
Transmitter
Service
Amateur
Downlink Mode
GMSK
Downlink Frequency
435860000.0
Baud
9600
IARU Coordination
IARU Coordinated
ITU Notifications
ITU Notified [Link 1]
Updated by fredy and reviewed on 2026-03-13 15:47 by fredy
Mode U - AFSK1k2 - Transmitter
Copy UUID Citation
Type
Transmitter
Service
Amateur
Downlink Mode
AFSK
Downlink Frequency
435860000.0
Baud
1200
IARU Coordination
IARU Coordinated
ITU Notifications
ITU Notified [Link 1]
Updated by fredy and reviewed on 2026-03-13 15:47 by fredy
Most Recent Observers (last 24h)
Observer Latest Data
KC1OCA UC-4364-531R (UHF)-FN32uc 2026-09-30 01:20:25 UTC
Data Frames Decoded - 30 Days
There is no decoded data for this satellite in the last 30 days.
No Decoders Found
Help us develop a decoder, you can find instructions at this wiki link
Orbital Elements
Latest Two-Line Element (TLE)
TLE Source
Space-Track.org
TLE Updated
2026-09-30 03:23:49 UTC
TLE Set 
1 68261U 25241B   26272.31370833  .00004328  00000-0  18428-3 0  9997
2 68261  51.6559 183.6087 0007946 135.6696 224.4920 15.25019254 30797
Satellite Suggestion History
Transmitter Suggestion History