Stefan Hackel

Stefan Hackel is a flight dynamics engineer at DLR’s German Space Operations Center, where he works on software development and spacecraft operations.

Figure 1: Groundtracks of NVS-02 for six consecutive days. The colored dots represent stations tracking the L5 signal on the day given in the legend. Pink ground tracks indicate tracking by any of the stations. (All figures provided by the authors)

May 8, 2025

NVS-02: Navigation signals from transfer orbit