PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/04-01:57:40
G10     259.1          33.1               14.9 +/-    0.91      24.5 +/-    0.91  0.180 / 0.190
G13     46.2           24.0                8.6 +/-    1.35      17.3 +/-    1.35  0.120 / 0.220
G15     71.3           55.3               10.9 +/-    0.41      13.0 +/-    0.41  0.190 / 0.330
G16     285.2          14.4                9.2 +/-    1.92      23.1 +/-    1.92  0.240 / 0.450
G20     276.4          50.2               12.6 +/-    1.15      15.8 +/-    1.15  0.090 / 0.080
G21     345.5          66.2                8.9 +/-    0.80       9.6 +/-    0.80  0.080 / 0.110
G26     257.8          11.5               12.0 +/-    4.72      32.5 +/-    4.72  0.040 / 0.050
G27     321.4          12.7                7.5 +/-    4.14      19.6 +/-    4.14  0.040 / 0.040
G29     167.3          40.4               13.0 +/-    1.31      18.8 +/-    1.31  0.050 / 0.070