PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/17-09:13:10
G03     225.3          63.9                5.9 +/-    1.16       6.5 +/-    1.16  0.040 / 0.060
G07     252.2          11.1               -4.8 +/-   12.92     -13.2 +/-   12.92  0.040 / 0.060
G09     307.7          24.8                3.9 +/-    2.25       7.7 +/-    2.25  0.080 / 0.300
G14     104.2          12.2                4.3 +/-    1.56      11.3 +/-    1.56  0.120 / 0.340
G16     106.7          62.5                6.8 +/-    0.46       7.5 +/-    0.46  0.160 / 0.350
G22     190.7          48.0                6.9 +/-    0.96       9.0 +/-    0.96  0.040 / 0.040
G23     325.6          55.4                5.0 +/-    0.72       5.9 +/-    0.72  0.040 / 0.050
G26     58.4           46.0                4.6 +/-    1.03       6.1 +/-    1.03  0.040 / 0.060
G31     56.4           12.8                2.4 +/-    2.04       6.2 +/-    2.04  0.040 / 0.040