PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/03-14:28:10
G02     221.5          62.2                8.3 +/-    1.52       9.3 +/-    1.52  0.070 / 0.080
G06     48.1           68.9                9.0 +/-    0.30       9.5 +/-    0.30  0.060 / 0.090
G12     319.6          40.7                6.1 +/-    0.78       8.8 +/-    0.78  0.050 / 0.080
G17     59.4           31.4                9.0 +/-    1.60      15.3 +/-    1.60  0.040 / 0.100
G19     46.2           44.4                7.2 +/-    1.32       9.8 +/-    1.32  0.040 / 0.060
G24     260.1          39.7                8.5 +/-    2.53      12.4 +/-    2.53  0.060 / 0.070
G28     124.0          16.1                8.7 +/-    2.01      21.1 +/-    2.01  0.030 / 0.020