PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/19-05:12:40
G01     120.2          16.9                7.1 +/-    1.86      16.8 +/-    1.86  0.170 / 0.190
G07     80.5           65.8                5.1 +/-    0.40       5.5 +/-    0.40  0.090 / 0.230
G08     44.6           30.1                2.9 +/-    1.34       5.0 +/-    1.34  0.080 / 0.060
G09     174.8          24.5                7.3 +/-    1.85      14.5 +/-    1.85  0.090 / 0.070
G11     106.2          39.7                7.6 +/-    0.66      11.2 +/-    0.66  0.030 / 0.030
G13     318.1          18.8                3.0 +/-    1.99       6.7 +/-    1.99  0.030 / 0.030
G17     200.3          25.6                6.7 +/-    2.26      12.9 +/-    2.26  0.030 / 0.020
G28     287.7          55.7                4.7 +/-    2.28       5.6 +/-    2.28  0.030 / 0.020
G30     341.1          66.4                5.0 +/-    0.98       5.4 +/-    0.98  0.100 / 0.170