PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/24-08:57:30
G03     216.5          59.3                5.0 +/-    0.46       5.7 +/-    0.46  0.060 / 0.080
G07     256.4          14.8                4.7 +/-    1.48      11.9 +/-    1.48  0.060 / 0.070
G09     310.7          29.5                3.3 +/-    1.70       5.8 +/-    1.70  0.180 / 0.290
G16     92.0           63.4                5.1 +/-    0.41       5.7 +/-    0.41  0.210 / 0.330
G22     188.8          42.3                5.3 +/-    0.61       7.4 +/-    0.61  0.040 / 0.060
G23     330.2          59.8                3.6 +/-    0.72       4.1 +/-    0.72  0.050 / 0.060
G26     53.0           41.9                3.7 +/-    0.39       5.2 +/-    0.39  0.030 / 0.040
G27     134.9          10.0              -16.1 +/-   12.89     -44.9 +/-   12.89  0.030 / 0.060