Illustration of PROBA-2
This illustration shows PROBA-2, fully operational in its final orbit. The front side of the spacecraft, where the instruments used for solar observation are located, is continuously oriented towards the Sun.
The three vertical circles seen on the right of the central (white) panel are part of LYRA (Large Yield Radiometer). Just below LYRA is SWAP (Sun Watcher using Active pixel system detector and image Processing) - the grey surface in the bottom right corner.
In the center of the white panel is the SPC (Solar Panel Concentrator) – the two vertical triangle mirrors - and below this, the DSS (Digital Sun Sensor) - the yellow grey box with a circular hole.
On the right side of the satellite one of the three TPMUs (Thermal Plasma Measurement Units) - the circular shape behind the solar panel can be seen, as can the two extended DSLP (Dual Segmented Langmuir Probe) antennas extending from each corner of the solar array.