PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/13-19:12:40
G10     264.9          37.2               14.1 +/-    1.07      21.5 +/-    1.07  0.180 / 0.300
G13     42.8           19.5               12.0 +/-    2.25      26.6 +/-    2.25  0.140 / 0.190
G15     65.0           53.7               12.3 +/-    0.75      14.8 +/-    0.75  0.040 / 0.050
G16     280.8          12.8               11.6 +/-    2.33      30.3 +/-    2.33  0.040 / 0.050
G20     293.8          59.4               13.6 +/-    0.99      15.6 +/-    0.99  0.140 / 0.340
G21     0.3            70.9               14.0 +/-    0.51      14.7 +/-    0.51  0.150 / 0.310
G24     119.1          13.4               12.7 +/-    2.17      32.7 +/-    2.17  0.120 / 0.320
G27     320.1          16.0               11.8 +/-    1.85      28.7 +/-    1.85  0.130 / 0.310
G29     167.5          33.4               13.3 +/-    2.08      21.7 +/-    2.08  0.080 / 0.280