Performance Analysis of the SO/PHI Software Framework for On-board Data Reduction
Solanki, S. K.; Lagg, A.; Fiethe, B.; del Toro Iniesta, J. C.; Hirzberger, J.; Albert, K.; Gandorfer, A.; Kolleck, M.; Guan, Y.; Michalik, H.; Lange, T.; Busse, D.; Rodríguez, J. Blanco; Castellanos Duran, J. S.; Cobos Carrascosa, J. P.
Germany, Spain
Abstract
The Polarimetric and Helioseismic Imager (PHI) is the first deep-space solar spectropolarimeter, on-board the Solar Orbiter (SO) space mission. It faces: stringent requirements on science data accuracy, a dynamic environment, and severe limitations on telemetry volume. SO/PHI overcomes these restrictions through on-board instrument calibration and science data reduction, using dedicated firmware in FPGAs. This contribution analyses the accuracy of a data processing pipeline by comparing the results obtained with SO/PHI hardware to a reference from a ground computer. The results show that for the analyzed pipeline the error introduced by the firmware implementation is well below the requirements of SO/PHI.