PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/12-13:58:00
G01     39.2           13.6                6.0 +/-    2.98      15.5 +/-    2.98  0.090 / 0.150
G06     173.1          41.9                8.8 +/-    1.10      12.5 +/-    1.10  0.090 / 0.170
G13     234.4          21.0                8.3 +/-    1.60      17.8 +/-    1.60  0.210 / 0.330
G15     269.2          11.3                6.5 +/-    1.69      17.5 +/-    1.69  0.300 / 0.330
G17     354.4          71.4                7.9 +/-    0.78       8.2 +/-    0.78  0.050 / 0.030
G19     287.4          71.3                7.2 +/-    0.71       7.5 +/-    0.71  0.040 / 0.030
G24     315.8          20.2                5.3 +/-    2.21      11.5 +/-    2.21  0.040 / 0.030
G28     67.9           50.6                8.4 +/-    1.39      10.5 +/-    1.39  0.040 / 0.050
G30     155.2          25.4                7.3 +/-    1.88      14.2 +/-    1.88  0.060 / 0.070