PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/10-04:58:00
G10     242.1          18.7                9.6 +/-    2.30      21.9 +/-    2.30  0.090 / 0.340
G13     65.2           34.9                8.7 +/-    0.92      13.9 +/-    0.92  0.090 / 0.300
G15     108.3          56.5                9.1 +/-    0.58      10.6 +/-    0.58  0.050 / 0.040
G16     305.7          15.0                5.5 +/-    2.59      13.6 +/-    2.59  0.050 / 0.060
G20     278.6          66.3                8.7 +/-    0.76       9.4 +/-    0.76  0.040 / 0.040
G21     321.3          52.6                7.5 +/-    0.75       9.2 +/-    0.75  0.040 / 0.030
G26     277.1          19.3                6.7 +/-    1.75      15.0 +/-    1.75  0.040 / 0.040
G29     161.3          62.8                7.5 +/-    0.67       8.3 +/-    0.67  0.030 / 0.040