PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/07-15:57:50
G02     213.1          53.0               11.1 +/-    1.18      13.5 +/-    1.18  0.080 / 0.270
G06     73.4           77.4                9.3 +/-    0.57       9.5 +/-    0.57  0.080 / 0.220
G12     316.1          30.9                8.8 +/-    1.84      15.2 +/-    1.84  0.060 / 0.100
G17     50.2           38.7                8.2 +/-    0.44      12.1 +/-    0.44  0.060 / 0.110
G19     34.9           51.1                8.9 +/-    0.42      11.1 +/-    0.42  0.070 / 0.090
G24     272.8          41.8                8.8 +/-    0.81      12.4 +/-    0.81  0.050 / 0.090
G28     117.1          23.0                7.5 +/-    0.94      15.3 +/-    0.94  0.070 / 0.060