PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/28-02:43:00
G01     116.3          19.6               11.0 +/-    0.68      24.5 +/-    0.68  0.020 / 0.040
G07     91.6           62.6                8.1 +/-    1.09       8.9 +/-    1.09  0.030 / 0.040
G08     43.1           26.4                5.4 +/-    1.09      10.2 +/-    1.09  0.040 / 0.050
G09     175.4          21.7                9.9 +/-    0.94      21.0 +/-    0.94  0.040 / 0.060
G11     100.2          41.2               10.5 +/-    0.87      15.0 +/-    0.87  0.110 / 0.200
G13     315.9          22.3                1.2 +/-    2.86       2.4 +/-    2.86  0.130 / 0.220
G17     201.2          30.2                7.4 +/-    2.73      13.0 +/-    2.73  0.060 / 0.190
G18     87.0           21.4                9.9 +/-    1.33      21.1 +/-    1.33  0.060 / 0.190
G28     294.4          57.1                5.4 +/-    0.76       6.3 +/-    0.76  0.030 / 0.040
G30     349.1          70.4                5.9 +/-    0.96       6.2 +/-    0.96  0.030 / 0.040