PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/30-14:42:50
G01     124.5          13.8               10.8 +/-    2.13      27.7 +/-    2.13  0.030 / 0.040
G07     62.1           69.1                9.1 +/-    0.55       9.7 +/-    0.55  0.020 / 0.030
G08     48.3           37.2                8.8 +/-    0.79      13.5 +/-    0.79  0.040 / 0.040
G09     177.0          31.6               10.9 +/-    1.44      18.5 +/-    1.44  0.040 / 0.040
G11     114.6          37.0               11.4 +/-    0.53      17.5 +/-    0.53  0.160 / 0.320
G13     320.2          14.3                6.4 +/-    3.53      16.1 +/-    3.53  0.170 / 0.370
G17     200.7          17.3                9.6 +/-    1.58      22.6 +/-    1.58  0.090 / 0.380
G18     100.6          18.1               10.4 +/-    1.67      24.1 +/-    1.67  0.130 / 0.500
G28     281.4          54.5               10.1 +/-    0.82      12.1 +/-    0.82  0.050 / 0.120
G30     336.4          62.9                9.3 +/-    0.58      10.3 +/-    0.58  0.040 / 0.130