PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/04-20:12:40
G02     201.0          24.7               17.6 +/-    3.31      34.6 +/-    3.31  0.110 / 0.160
G06     167.0          59.4               15.5 +/-    0.44      17.7 +/-    0.44  0.130 / 0.140
G17     23.4           58.4               13.6 +/-    0.83      15.6 +/-    0.83  0.410 / 0.700
G19     329.5          70.0               12.7 +/-    0.40      13.4 +/-    0.40  0.310 / 0.630
G24     306.8          32.8               11.3 +/-    1.92      18.7 +/-    1.92  0.050 / 0.030
G28     92.6           37.3               14.6 +/-    0.76      22.2 +/-    0.76  0.050 / 0.040
G30     157.5          10.7               12.7 +/-   21.53      35.0 +/-   21.53  0.030 / 0.040