PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/07-15:42:50
G02     62.6           30.1                6.7 +/-    0.63      11.6 +/-    0.63  0.030 / 0.030
G05     54.5           60.4                7.7 +/-    0.32       8.7 +/-    0.32  0.030 / 0.040
G12     182.1          27.3               10.5 +/-    1.62      19.5 +/-    1.62  0.100 / 0.250
G13     123.2          17.7               11.2 +/-    2.04      26.1 +/-    2.04  0.120 / 0.330
G15     160.9          16.2               12.8 +/-    1.84      31.0 +/-    1.84  0.090 / 0.370
G21     275.0          19.2                7.7 +/-    1.47      17.3 +/-    1.47  0.090 / 0.430
G25     231.9          49.2                9.0 +/-    2.71      11.5 +/-    2.71  0.050 / 0.070
G29     331.0          57.8                5.4 +/-    1.02       6.2 +/-    1.02  0.050 / 0.070