CUBESAT XI-IV
Mission information
Name
CUBESAT XI-IV
Alternate Names
CO-57
Satellite ID
KZUI-4275-4790-4963-1514
NORAD ID
27848
Website
https://www.space.t.u-tokyo.ac.jp/
Country of Origin

Japan

Status
Satellite alive
Operational

Satellite is in orbit and operational

Image
CUBESAT XI-IV
Mission timeline
Launch Date
2003-06-30T00:00:00+00:00
Description

Cubesat XI-IV is Japanese 1U Cubesat which is also known as CO-57 or Sai Four. It has a CW beacon using the callsign JQ1YCW.

Mode U CW Beacon
Type
Transmitter
Downlink Mode
CW
Downlink Frequency
436847500
Mode U AFSK TLM
Type
Transmitter
Downlink Mode
AFSK
Downlink Frequency
437490000
Baud
1200
PE0SAT - CW Beacon
Type
Transmitter
Downlink Mode
CW
Downlink Frequency
436848700
Baud
15
Most Recent Observers (last 24h)
Observer Latest Data
Sofia SAT Club - Hadji Boby UHF-KN21lq 2026-08-19 05:40:31 UTC
Sofia SAT Club - Bay Ivan-KN22lx 2026-08-19 05:39:19 UTC
SA2KNG Omni UHF/VHF-KP03cu 2026-08-19 05:35:33 UTC
Pelt-UHF-Fixed-Yagi-DO21wb 2026-08-19 01:55:33 UTC
W6MSU UHF-CM98hb 2026-08-19 01:50:28 UTC
Data Frames Decoded - 30 Days
There is no decoded data for this satellite in the last 30 days.
Decoder: CO-57
Script Name
co57
Decoder Fields
Click here
Orbital Elements
Latest Two-Line Element (TLE)
TLE Source
Space-Track.org
TLE Updated
2026-08-18 19:37:12 UTC
TLE Set
1 27848U 03031J   26230.50668447  .00000156  00000-0  87377-4 0  9997
2 27848 98.6794 237.9509 0010057 30.2184 329.9573 14.23648831200246
Satellite Suggestion History

Transmitter Suggestion History