PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/11-01:28:10
G10     258.9          33.1               13.0 +/-    2.83      21.5 +/-    2.83  0.390 / 0.260
G13     46.3           24.1               10.6 +/-    2.49      21.2 +/-    2.49  0.110 / 0.160
G15     71.9           55.6               11.8 +/-    0.68      14.0 +/-    0.68  0.040 / 0.040
G16     285.2          14.5                9.7 +/-    1.38      24.3 +/-    1.38  0.040 / 0.040
G20     273.0          46.4               11.2 +/-    2.56      14.8 +/-    2.56  0.070 / 0.150
G21     345.1          66.1               12.3 +/-    0.40      13.3 +/-    0.40  0.080 / 0.140
G26     258.0          11.6               13.2 +/-    7.94      35.7 +/-    7.94  0.130 / 0.250
G27     321.5          12.5                4.5 +/-   15.71      12.0 +/-   15.71  0.120 / 0.260
G29     167.3          40.7               13.2 +/-    0.93      19.0 +/-    0.93  0.030 / 0.030