PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/31-01:57:40
G01     318.5          19.3                7.8 +/-    1.99      17.5 +/-    1.99  0.150 / 0.360
G08     253.9          12.3               10.3 +/-    1.69      27.2 +/-    1.69  0.160 / 0.370
G10     82.5           52.0                7.7 +/-    0.72       9.5 +/-    0.72  0.190 / 0.290
G11     300.5          24.6                8.3 +/-    0.75      16.3 +/-    0.75  0.170 / 0.290
G14     300.6          70.7                8.1 +/-    0.83       8.5 +/-    0.83  0.030 / 0.050
G18     302.7          41.9                7.9 +/-    0.74      11.2 +/-    0.74  0.040 / 0.050
G20     76.4           65.9               12.8 +/-    1.29      13.8 +/-    1.29  0.070 / 0.210
G22     301.3          10.3                3.9 +/-   10.41      10.8 +/-   10.41  0.080 / 0.220
G31     173.4          45.7               10.9 +/-    1.25      14.6 +/-    1.25  0.190 / 0.440
G32     14.7           65.0                5.9 +/-    0.57       6.4 +/-    0.57  0.200 / 0.490