PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/22-21:28:10
G02     27.8           59.2                8.6 +/-    0.82       9.8 +/-    0.82  0.100 / 0.120
G05     145.1          58.2               10.6 +/-    0.30      12.3 +/-    0.30  0.080 / 0.090
G06     50.7           19.8                7.5 +/-    2.22      16.6 +/-    2.22  0.060 / 0.050
G12     213.6          74.3                9.9 +/-    0.77      10.2 +/-    0.77  0.040 / 0.040
G19     96.2           11.4                8.4 +/-    2.03      22.8 +/-    2.03  0.020 / 0.030
G25     303.5          49.6                8.9 +/-    4.22      11.3 +/-    4.22  0.020 / 0.030
G29     304.4          25.9               10.0 +/-    2.53      19.2 +/-    2.53  0.100 / 0.220