PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/10-12:28:10
G07     325.8          55.2                3.8 +/-    0.95       4.5 +/-    0.95  0.070 / 0.130
G08     106.9          50.2                5.8 +/-    0.67       7.3 +/-    0.67  0.070 / 0.100
G09     195.0          77.6                5.4 +/-    1.09       5.5 +/-    1.09  0.050 / 0.070
G11     148.5          10.4               -6.1 +/-   10.43     -17.0 +/-   10.43  0.040 / 0.080
G23     153.3          45.4                6.8 +/-    0.86       9.1 +/-    0.86  0.070 / 0.250
G27     60.2           34.0                5.3 +/-    0.52       8.5 +/-    0.52  0.070 / 0.210
G28     233.6          25.5                6.8 +/-    1.49      13.1 +/-    1.49  0.040 / 0.050
G30     297.7          31.3                3.1 +/-    1.14       5.2 +/-    1.14  0.040 / 0.060