PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/15-14:57:40
G02     352.7          75.6                4.6 +/-    0.68       4.7 +/-    0.68  0.070 / 0.160
G05     163.9          37.2                7.1 +/-    2.26      10.8 +/-    2.26  0.060 / 0.110
G06     42.9           34.4                5.2 +/-    1.47       8.4 +/-    1.47  0.120 / 0.270
G12     299.5          76.6                5.5 +/-    0.96       5.6 +/-    0.96  0.120 / 0.360
G17     88.8           10.1                5.2 +/-    2.48      14.5 +/-    2.48  0.070 / 0.360
G19     80.1           22.2                4.7 +/-    1.35       9.7 +/-    1.35  0.080 / 0.270
G24     225.7          19.3                6.7 +/-    1.07      15.0 +/-    1.07  0.030 / 0.030
G25     316.0          32.5                3.7 +/-    1.76       6.2 +/-    1.76  0.030 / 0.030
G29     289.2          11.4                4.8 +/-    8.92      12.9 +/-    8.92  0.080 / 0.160