PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/23-00:12:50
G01     48.0           23.9               12.1 +/-    0.84      24.2 +/-    0.84  0.110 / 0.370
G06     177.8          27.2               21.4 +/-    1.61      39.8 +/-    1.61  0.210 / 0.390
G07     147.2          10.4               21.9 +/-    4.09      60.4 +/-    4.09  0.050 / 0.120
G11     44.7           15.0               11.4 +/-    1.78      28.3 +/-    1.78  0.070 / 0.120
G13     248.4          28.8               16.2 +/-    1.73      29.1 +/-    1.73  0.220 / 0.300
G15     280.6          15.4               15.7 +/-    1.59      38.6 +/-    1.59  0.160 / 0.360
G17     311.2          77.3               15.2 +/-    1.03      15.5 +/-    1.03  0.040 / 0.070
G19     251.5          61.9               15.2 +/-    0.94      17.0 +/-    0.94  0.040 / 0.070
G28     57.2           51.4               13.9 +/-    0.76      17.3 +/-    0.76  0.060 / 0.110
G30     150.1          35.8               18.6 +/-    1.02      29.0 +/-    1.02  0.050 / 0.110