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
Operational
Satellite is in orbit and operational
Image

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.
SatNOGS Links
Mode U CW Beacon
- Type
- Transmitter
- Downlink Mode
- CW
- Downlink Frequency
- 436.848 MHz
Mode U AFSK TLM
- Type
- Transmitter
- Downlink Mode
- AFSK
- Downlink Frequency
- 437.490 MHz
- Baud
- 1200
PE0SAT - CW Beacon
- Type
- Transmitter
- Downlink Mode
- CW
- Downlink Frequency
- 436.849 MHz
- Baud
- 15
Most Recent Observers (last 24h)
Observer | Latest Data |
---|---|
GS Nord UHF-JO10kq | 2025-07-16 18:09:22 UTC |
M0GLU-IO91vc | 2025-07-16 18:08:42 UTC |
DEX-X-JO20ul | 2025-07-16 18:07:59 UTC |
UX5UL-KO50ei | 2025-07-16 16:30:14 UTC |
GAO UHF-JN87hg | 2025-07-16 16:30:09 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
- 2025-07-16 05:02:41 UTC
- TLE Set
-
1 27848U 03031J 25196.90151084 .00000178 00000-0 97649-4 0 9992
2 27848 98.6787 204.6844 0010783 98.5944 261.6457 14.23350324143536