PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/19-02:12:30
G10     301.2          53.0                9.2 +/-    0.81      11.2 +/-    0.81  0.060 / 0.090
G14     211.3          12.0                5.7 +/-   28.90      15.2 +/-   28.90  0.060 / 0.130
G15     46.1           28.1                6.0 +/-    1.17      10.9 +/-    1.17  0.100 / 0.560
G20     320.8          60.8               10.8 +/-    0.85      12.2 +/-    0.85  0.120 / 0.430
G21     102.4          73.4               11.6 +/-    1.01      12.0 +/-    1.01  0.040 / 0.040
G24     93.5           27.2               10.9 +/-    1.41      20.3 +/-    1.41  0.040 / 0.040
G27     297.7          35.2                9.8 +/-    1.00      15.5 +/-    1.00  0.070 / 0.120
G32     211.3          36.3               12.2 +/-    2.16      18.9 +/-    2.16  0.070 / 0.160