EduSat: let students design a testable mission

Brazil’s EduSat work connects school learning with small spacecraft development through Ideia Space and participating institutions. The first EduSat was among the satellites lost on PSLV-C62 in January 2026. Later, AEB’s September 30 announcement described EduSat-2 and EduSat-3 under AEB – Escola em Órbita, involving students in Sorocaba and Fortaleza. It documents participation in defining, assembling, programming and testing missions; the announcement itself is not evidence of subsequent commissioning.

Ideia Space describes an educational mission approach in which ground sensors, onboard storage and a radio link form a practical information chain. Its mission roster also names SARI-1 and ANISC-1 as related educational efforts. These project names should not be collapsed into one physical satellite or confused with India’s older EDUSAT communications mission. A useful history identifies the students’ activities, the particular spacecraft and the dated evidence supporting each claimed outcome.

Suppose a fictional school wants to investigate flooding near its playground. “Build a satellite” is a proposed means, not yet a measurement requirement. First decide what the class needs to know: for example, how water level changes at a specified location after rain. Then define sampling time, units, sensor location and how the information will reach the students. A small mission succeeds as an experiment only if the collected data can address the question.

One team can build a sensor, another write a packet encoder and a third display the received values. Agree the interface before connecting their work. If the sensor team reports centimeters and the display assumes meters, every component may run while the combined result is wrong. Test the chain with a recognizable input and an expected output. The same habit is useful whether the communication path is a classroom cable, a ground radio link or a planned satellite relay.

Design from the question outward

In an original integration test — open definition, feed the system a known value of 25 centimeters. The display shows 25 meters. The hundredfold discrepancy points toward a unit or conversion error; it is not evidence of a sudden flood. Preserve the test input, software version and observed output, correct the interface and repeat the same test. A repeatable exercise allows a new team to check whether the correction actually changed the behavior.

Assess the educational result through students’ explanations, design records and ability to diagnose problems. A launch photograph does not establish those abilities, and a launch loss does not erase work completed in the classroom. Conversely, an engaging workshop does not prove a spacecraft achieved its intended service. EduSat offers a way to connect both ambitions: give students real engineering decisions while reporting ground learning, launch events and orbital operations as distinct achievements.