PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/11-04:58:10
G10     268.1          39.8               11.5 +/-    0.94      16.7 +/-    0.94  0.110 / 0.130
G13     41.3           16.9                6.0 +/-    2.98      14.2 +/-    2.98  0.110 / 0.130
G15     57.4           47.0                8.4 +/-    0.98      11.0 +/-    0.98  0.040 / 0.040
G16     281.4          11.8               11.4 +/-    2.37      30.5 +/-    2.37  0.040 / 0.040
G20     299.5          60.7                8.9 +/-    0.71      10.0 +/-    0.71  0.120 / 0.080
G21     8.4            72.5                9.7 +/-    1.18      10.1 +/-    1.18  0.120 / 0.070
G24     119.4          14.7                7.3 +/-    1.86      18.3 +/-    1.86  0.100 / 0.360
G27     319.0          18.2                9.6 +/-    1.80      22.0 +/-    1.80  0.220 / 0.330
G29     165.8          27.5                9.1 +/-    2.25      16.8 +/-    2.25  0.130 / 0.290