PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/06-20:27:50
G01     66.0           32.2               14.7 +/-    0.96      24.6 +/-    0.96  0.100 / 0.380
G07     139.8          27.7               16.7 +/-    1.75      30.7 +/-    1.75  0.110 / 0.430
G11     51.7           28.8               12.1 +/-    1.26      21.8 +/-    1.26  0.070 / 0.120
G13     269.5          36.7               13.2 +/-    1.23      20.2 +/-    1.23  0.070 / 0.140
G15     299.1          15.9                9.3 +/-    1.51      22.5 +/-    1.51  0.050 / 0.070
G17     239.3          68.7               13.6 +/-    0.40      14.4 +/-    0.40  0.050 / 0.090
G18     46.3           16.4               10.9 +/-    1.43      26.2 +/-    1.43  0.060 / 0.150
G19     227.5          44.6               15.5 +/-    1.14      21.0 +/-    1.14  0.060 / 0.150
G28     27.3           58.1               12.6 +/-    0.66      14.5 +/-    0.66  0.040 / 0.040
G30     139.3          56.5               14.1 +/-    1.08      16.5 +/-    1.08  0.040 / 0.050