PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/15-23:13:10
G05     50.1           13.5                6.3 +/-    2.08      16.3 +/-    2.08  0.030 / 0.040
G10     238.5          16.7               11.6 +/-    2.41      27.7 +/-    2.41  0.030 / 0.040
G13     69.9           34.9                8.3 +/-    0.93      13.2 +/-    0.93  0.110 / 0.230
G15     117.0          54.7               10.0 +/-    0.40      12.0 +/-    0.40  0.210 / 0.190
G16     311.4          13.2                5.5 +/-    1.94      14.4 +/-    1.94  0.060 / 0.070
G20     251.9          39.5                9.6 +/-    1.22      14.1 +/-    1.22  0.050 / 0.070
G21     316.8          48.9                7.6 +/-    0.75       9.7 +/-    0.75  0.080 / 0.140
G26     284.2          19.6                6.1 +/-    1.69      13.5 +/-    1.69  0.070 / 0.130
G29     155.5          67.2               10.0 +/-    0.59      10.8 +/-    0.59  0.090 / 0.210