PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/22-17:57:20
G02     200.9          22.9                9.9 +/-    2.10      20.3 +/-    2.10  0.050 / 0.090
G06     169.4          56.6                9.4 +/-    0.53      11.0 +/-    0.53  0.040 / 0.080
G13     224.0          11.4                8.9 +/-    1.43      24.0 +/-    1.43  0.300 / 0.270
G17     22.7           58.9                9.0 +/-    0.86      10.4 +/-    0.86  0.250 / 0.290
G19     335.3          70.5                8.4 +/-    0.41       8.8 +/-    0.41  0.080 / 0.130
G24     307.8          31.5                7.6 +/-    1.46      13.0 +/-    1.46  0.090 / 0.110
G28     87.2           42.6               10.2 +/-    0.87      14.2 +/-    0.87  0.050 / 0.050
G30     156.5          9.7                 7.5 +/-    7.92      21.1 +/-    7.92  0.040 / 0.040