#   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 1.25954627763 1.34892585442
  154.548009 0.334124580741 1.03300989531
  154.551481 0.355339731718 0.398817159943
  154.554954 0.977426050001 0.742507413525
  154.558426 1.32512495607 1.23191264115
  154.561898 1.14851301516 1.04811708336
  154.565370 1.22637456792 0.981300749353
  154.568843 1.49187982898 1.17395899699
  154.572315 1.72907827121 1.57088562304
  154.575787 1.51916382381 0.341228553653
  154.579259 0.848535573752 -2.54820484245
  154.582731 -1.45748302262 -2.43195155631
  154.586204 -1.66257786083 -2.26568354783
  154.589676 -1.76041756504 -2.34757744513
  154.593148 -1.79994647083 -2.25276522809
  154.596620 -1.76213277239 -2.31243664556
  154.600093 -2.08725828461 -1.96060152342
  154.603565 -3.40319114636 -0.092443355231
  154.607037 1.68781113524 2.1657930628
  154.610509 1.48553098498 1.03443332854
  154.613981 0.550511647302 0.583259089583
  154.617454 2.00842340137 2.8948815905
  154.620926 0.79670056725 1.20924011257
  154.624398 2.55965786414 1.49359777862
  154.627870 0.851949118511 1.13188122537
  154.631343 1.28115565279 1.53182963966
  154.634815 2.14560899607 1.74512054527