PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/13-23:27:50
G01     56.9           29.2                7.2 +/-    1.45      12.9 +/-    1.45  0.160 / 0.300
G06     182.2          13.7               -6.5 +/-   39.31     -16.5 +/-   39.31  0.170 / 0.360
G07     142.8          15.3               11.5 +/-    3.19      28.4 +/-    3.19  0.090 / 0.120
G11     46.3           20.4                7.6 +/-    2.49      16.5 +/-    2.49  0.110 / 0.120
G13     258.4          34.7               12.1 +/-    1.17      19.2 +/-    1.17  0.040 / 0.040
G15     290.6          16.5                8.0 +/-    1.22      19.1 +/-    1.22  0.050 / 0.050
G17     277.8          79.4                9.1 +/-    0.54       9.3 +/-    0.54  0.120 / 0.070
G19     235.0          52.9               10.0 +/-    1.76      12.2 +/-    1.76  0.090 / 0.080
G28     34.3           57.7                8.0 +/-    0.85       9.3 +/-    0.85  0.160 / 0.290
G30     145.5          49.1               10.3 +/-    0.77      13.2 +/-    0.77  0.190 / 0.210