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 |
---|---|
MAUSyagi-FN32hh | 2025-07-13 22:36:24 UTC |
estima5633-PM85ma | 2025-07-13 21:24:15 UTC |
VK5KJP-UHF-PF95gd | 2025-07-13 20:02:49 UTC |
M0GLU-IO91vc | 2025-07-13 17:41:13 UTC |
DEX-X-JO20ul | 2025-07-13 17:38:07 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
Warning: There is at least one newer non-redestributable TLE set.
Latest Two-Line Element (TLE)
- TLE Source
- CalPoly
- TLE Updated
- 2025-07-13 23:02:37 UTC
- TLE Set
-
1 27848U 03031J 25194.44113036 .00000187 00000-0 10177-3 0 9994
2 27848 98.6785 202.2576 0010762 105.0136 255.2234 14.23349255143188