PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/14-23:12:40
G01     94.8           30.7               17.0 +/-    0.85      29.3 +/-    0.85  0.070 / 0.090
G07     121.5          49.3               18.5 +/-    0.58      23.5 +/-    0.58  0.080 / 0.090
G08     42.2           13.8               11.3 +/-    4.51      28.8 +/-    4.51  0.040 / 0.040
G11     76.6           42.6               16.0 +/-    1.45      22.4 +/-    1.45  0.050 / 0.050
G13     299.5          34.1               12.1 +/-    1.67      19.4 +/-    1.67  0.040 / 0.050
G17     212.5          46.8               17.8 +/-    0.58      23.4 +/-    0.58  0.040 / 0.050
G19     213.0          23.4               19.6 +/-    2.47      39.7 +/-    2.47  0.240 / 0.290
G28     342.5          61.9               13.3 +/-    0.75      14.9 +/-    0.75  0.170 / 0.490
G30     96.8           75.5               15.9 +/-    0.68      16.4 +/-    0.68  0.030 / 0.040