Satellite Forensics: Analysing Sparse Beacon Data to Reveal the Fate of DTUsat-2

Figure 13

Map of the beacon counter data received by the DTUsat ground station. The white lines are guiding lines used to aid the placement of the beacon dots. Red dots indicate first beacon after a reboot. Blue squares indicate a beacon number higher than 1. The letter group OBC indicates an OBC beacon. The white dots mark beacon from a small recording campaign a few months after the main recording campaign. All the dots are placed using the approach described in the troubleshooting methods section; however, the UTC times indicated at the perimeter are the ones that relates to the main (and largest) recording campaign.