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 in orbit
Operational

Satellite is in orbit

Reception
Status
Unknown
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
JI1IZR-PM95pi 2026-09-06 08:28:53 UTC
PE0SAT-21-JO21mr 2026-09-06 07:06:42 UTC
EuroSpaceHub-UCM-IM89jn 2026-09-06 05:35:07 UTC
W6MSU UHF-CM98hb 2026-09-06 01:39:04 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
2026-09-06 01:19:13 UTC
TLE Set
1 27848U 03031J   26248.56904257  .00000129  00000-0  75846-4 0  9992
2 27848 98.6801 255.7769 0008986 338.1578 21.9216 14.23656342202810
Satellite Suggestion History

Transmitter Suggestion History