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The UPM-LBSat or UPMSat (Universidad Politécnica de Madrid Satellite) is a microsat built by the University of Madrid and CIDE, Spain. The 44 kg (47 kg before separation) satellite was launched on the Ariane-40 H10-3 V75 mission on the 7th July 1995 alongside Cerise on an ASAP platform, besides the primary payload Helios 1A, a military remote sensing satellite.

The orbit is 665 × 675 km inclined at 98.1 degrees. The satellite is box shapedwith dimensions 530 × 450 × 450 mm, generates 30W end of life DC power from its four solar panels (three Si, one GaAs), and carries fluid dynamics and micro-gravity payloads. A 200 kHz bandwidth UHF transmitter is also included for communications research. It is attitude stabilized using magnetorquers.

Nation: Spain
Type / Application: Technology
Operator: Universidad Politécnica de Madrid Satellite
Contractors: Universidad Politécnica de Madrid Satellite
Power: Solar cells, batteries
Mass: 44 kg
Orbit: 665 km × 675 km, 98.1°
Satellite COSPAR Date LS Launch Vehicle Remarks
UPM-LBSat (UPMSat) 1995-033Cs 07.07.1995 Ko ELA-2 Ariane-40 H10-3 with Helios 1A, Cerise
Further UPMSat missions:

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