PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/10-21:28:10
G01     38.8           12.3                9.2 +/-    1.13      24.4 +/-    1.13  0.160 / 0.160
G02     199.3          13.9               20.4 +/-    2.78      52.0 +/-    2.78  0.150 / 0.240
G06     172.8          45.8               15.7 +/-    1.17      20.9 +/-    1.17  0.100 / 0.360
G13     233.3          18.3               18.4 +/-    1.79      42.3 +/-    1.79  0.120 / 0.360
G15     266.3          10.2               11.7 +/-    2.87      32.5 +/-    2.87  0.070 / 0.310
G17     3.7            68.3               13.8 +/-    0.88      14.7 +/-    0.88  0.060 / 0.320
G19     291.7          70.2               13.1 +/-    0.59      13.8 +/-    0.59  0.040 / 0.080
G24     314.3          23.8                9.7 +/-    3.37      19.4 +/-    3.37  0.040 / 0.090
G28     79.0           43.8               12.9 +/-    0.83      17.7 +/-    0.83  0.110 / 0.190
G30     155.6          21.2               15.8 +/-    2.81      33.7 +/-    2.81  0.100 / 0.210