PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/04-22:58:00
G01     93.0           30.8                9.9 +/-    0.94      17.1 +/-    0.94  0.040 / 0.050
G07     123.8          43.3                9.9 +/-    0.52      13.7 +/-    0.52  0.050 / 0.070
G11     69.8           40.2                8.7 +/-    0.62      12.6 +/-    0.62  0.080 / 0.140
G13     297.1          35.8                9.7 +/-    0.92      15.2 +/-    0.92  0.070 / 0.130
G17     211.4          52.9               11.2 +/-    0.81      13.6 +/-    0.81  0.030 / 0.030
G18     63.2           22.8                7.4 +/-    0.89      15.3 +/-    0.89  0.020 / 0.040
G19     213.0          24.2               13.1 +/-    1.66      26.2 +/-    1.66  0.060 / 0.140
G28     335.9          61.6                8.8 +/-    0.76       9.9 +/-    0.76  0.070 / 0.130
G30     94.2           77.8                8.6 +/-    0.55       8.8 +/-    0.55  0.040 / 0.060