PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/07-02:57:50
G02     58.8           32.8                4.0 +/-    1.02       6.6 +/-    1.02  0.070 / 0.100
G05     59.4           61.1                7.0 +/-    0.57       7.9 +/-    0.57  0.080 / 0.090
G12     185.1          34.4                9.9 +/-    1.77      16.0 +/-    1.77  0.160 / 0.520
G13     129.8          14.0                8.4 +/-    1.65      21.5 +/-    1.65  0.180 / 0.460
G15     164.5          10.9                1.8 +/-   26.41       5.0 +/-   26.41  0.030 / 0.040
G20     217.1          18.8               12.9 +/-    2.64      29.1 +/-    2.64  0.040 / 0.040
G21     269.8          16.0                9.6 +/-    1.64      23.4 +/-    1.64  0.050 / 0.090
G25     240.9          53.1                9.0 +/-    0.78      10.9 +/-    0.78  0.070 / 0.110
G29     326.7          52.3                7.5 +/-    0.87       9.2 +/-    0.87  0.050 / 0.080