#   yearbase = 2018
#    refuv_inputfile='a_ex.gps',
#    refuv_source='nav',
#    ens_len=300,
#    bl_half_width=3,
#    pgmin=50,
#    rl_startbin=2,
#    rl_endbin=20
  154.537616        1e+38        1e+38
  154.541065        1e+38        1e+38
  154.544537 1.26537340758 1.33864005347
  154.548009 0.343242789481 1.01898181667
  154.551481 0.344207528683 0.419359308799
  154.554954 0.983844400086 0.767546793702
  154.558426 1.32632322134 1.22648649125
  154.561898 1.13924504359 1.03221990056
  154.565370 1.24757947172 0.971413964427
  154.568843 1.4968299742 1.18996075167
  154.572315 1.6890300951 1.53543835921
  154.575787 1.51353143844 0.375984237213
  154.579259 0.872199139624 -2.5410513067
  154.582731 -1.48467933971 -2.44886866208
  154.586204 -1.62926043404 -2.31105869534
  154.589676 -1.80484562535 -2.27511400669
  154.593148 -1.78625747354 -2.29214993086
  154.596620 -1.72635129349 -2.31708512444
  154.600093 -2.09071485389 -1.95383619439
  154.603565 -3.43462920028 -0.0532690538615
  154.607037 1.69311774943 2.1570504083
  154.610509 1.49609500451 1.0190579836
  154.613981 0.59080785451 0.580525716255
  154.617454 1.94499972471 2.88567994707
  154.620926 0.837066506221  1.241734176
  154.624398 2.55388799096 1.49113063877
  154.627870 0.87906735493 1.10832809369
  154.631343 1.28985564521 1.53239937965
  154.634815 2.08258838229 1.75229137894