Middle School Students’ Tancredo-1 TubeSat Scheduled for Launch

Ubatubasat Team

The Tancredo-1 satellite, a small TubeSat built by middle school students in Brazil, is scheduled to be sent to the International Space Station on December 9, 2016. The satellite will be sent to the ISS inside the TuPOD TubeSat deployer onboard JAXA’s KOUNOTORI6 cargo ship (HTV-6 mission). The TuPOD is expected to be ejected into space by the J-SSOD satellite deployer on December 19th and on December 21st, Tancredo-1 is expected to be finally ejected from the TuPOD into space. Once in space, Tancredo-1 will start transmitting telemetry data.


Tancredo-1 is the first satellite of the Ubatubasat project, a STEM project idealized by Prof. Cândido Oswaldo de Moura at Escola Municipal Tancredo Neves public school in Ubatuba, state of Sao Paulo, Brazil. The project is supported by the Brazilian Institute for Space Research (INPE) and the Brazilian Space Agency (AEB). Tancredo-1 will initially have the same orbit as the ISS, but it will slowly drift with time and will eventually reenter in the atmosphere and burn.

The Ubatubasat project team and AMSAT-BR would like to kindly request radio amateurs around the planet to monitor and report any signals heard from Tancredo-1. Please send any reports (audio, AX.25 KISS files, etc) to

Tancredo-1 will transmit on 437.200 MHz using 1200 bps AFSK AX.25.

Telemetry format and equations:

For more information see:

73, Edson PY2SDR

Information on other ISS CubeSats