PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/11-01:12:30
G10     252.3          28.1               15.4 +/-    1.95      28.1 +/-    1.95  0.180 / 0.680
G13     51.7           28.7                9.3 +/-    1.11      16.7 +/-    1.11  0.130 / 0.590
G15     85.5           58.2               12.2 +/-    0.74      14.1 +/-    0.74  0.030 / 0.050
G16     292.3          15.7                8.9 +/-    3.23      21.8 +/-    3.23  0.040 / 0.050
G20     264.8          41.7               11.5 +/-    1.09      16.2 +/-    1.09  0.090 / 0.130
G21     335.0          61.0               12.4 +/-    0.34      14.0 +/-    0.34  0.080 / 0.150
G26     264.4          14.8               12.4 +/-    0.98      30.9 +/-    0.98  0.040 / 0.060
G29     165.8          48.7               13.1 +/-    0.92      16.8 +/-    0.92  0.030 / 0.060