I recently migrated my receiver from dump1090-mutability to dump1090-fa. Looking at the sbs1 output, ground track isn’t being calculated while on the ground (MSG,2), example:
Note the missing track value before latitude.
Options being passed:
dump1090 --device stx:1090:37 --net --net-bind-address localhost --lat 35.8776389 --lon -78.7874722 --max-range 50 --quiet
Please advise what I might be missing. If this is by design, what other output format might contain this attribute.