PROBA satellite series

Project for On-Board Autonomy (PROBA) is a series of small satellites in low Earth orbit combining technology demonstration with operational roles in Earth observation and astronomy, operated by the European Space Agency (ESA). All PROBA satellites have been constructed in Belgium. The name is also used to refer to the bus of the satellites.^{[1][2][3][4][5][6][7]} These missions are funded through the ESA's General Support Technology Programme (GSTP).^{[8][9][10][11][12]}

PROBA-3 in cleanroom

Satellites

• PROBA-1 (launched in October 2001) is testing two Earth observation instruments.
• PROBA-2 (launched in November 2009) is testing instruments for Sun observation and space weather monitoring.
• PROBA-V (launched in May 2013) performed daily monitoring of global vegetation growth.
• PROBA-V CubeSat Companion (launched in October 2023) is testing the PROBA-V instrument on a smaller CubeSat platform.
• PROBA-3 (launched in December 2024) is a dual-probe mission testing high-precision formation flying for coronagraphy of the Sun.
• ALTIUS (launch planned for 2027), using the PROBA satellite bus,^[13] will monitor stratospheric ozone.

See also

• List of European Space Agency programs and missions
• Jason satellite series