PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/13-04:57:40
G03     247.4          68.8                5.5 +/-    0.78       5.8 +/-    0.78  0.040 / 0.060
G09     304.1          21.5                5.2 +/-    2.50      10.9 +/-    2.50  0.040 / 0.060
G14     98.1           16.2                4.9 +/-    1.50      11.7 +/-    1.50  0.030 / 0.050
G16     126.1          58.0                7.3 +/-    0.58       8.5 +/-    0.58  0.030 / 0.050
G22     197.9          57.6                5.2 +/-    1.29       6.1 +/-    1.29  0.040 / 0.050
G23     317.4          47.1                5.1 +/-    1.38       6.7 +/-    1.38  0.050 / 0.040
G26     70.6           51.6                5.1 +/-    0.40       6.3 +/-    0.40  0.110 / 0.340
G31     51.7           20.2                1.7 +/-    1.40       3.6 +/-    1.40  0.100 / 0.370