PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/15-04:43:10
G07     22.2           68.5                4.0 +/-    0.60       4.3 +/-    0.60  0.040 / 0.060
G08     60.1           45.6                4.1 +/-    0.39       5.5 +/-    0.39  0.050 / 0.050
G09     176.2          45.7                6.6 +/-    2.13       8.8 +/-    2.13  0.030 / 0.040
G11     127.9          28.5                7.3 +/-    0.95      13.3 +/-    0.95  0.030 / 0.030
G18     111.7          10.6               -5.0 +/-   21.84     -13.8 +/-   21.84  0.090 / 0.130
G23     161.0          20.9                5.4 +/-    1.47      11.7 +/-    1.47  0.080 / 0.130
G27     41.1           18.5                2.2 +/-    0.52       5.0 +/-    0.52  0.070 / 0.180
G28     258.2          44.3                5.0 +/-    1.02       6.8 +/-    1.02  0.080 / 0.160
G30     319.2          49.6                4.1 +/-    0.92       5.2 +/-    0.92  0.120 / 0.280