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
DIYSATELLITE-GF05ug 2026-09-09 22:04:55 UTC
PE0SAT-12-JO21mr 2026-09-09 17:25:02 UTC
PE0SAT-21-JO21mr 2026-09-09 17:25:02 UTC
PE0SAT-31-JO21mr 2026-09-09 17:24:04 UTC
KC1OCA UC-4364-531R (UHF)-FN32uc 2026-09-09 11:05:39 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
2026-09-09 19:19:50 UTC
TLE Set
1 27848U 03031J   26252.57507919  .00000154  00000-0  86780-4 0  9999
2 27848 98.6802 259.7307 0008765 325.8005 34.2609 14.23657897203388
Satellite Suggestion History

Transmitter Suggestion History