PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/11-04:42:40
G05     50.5           12.4                1.8 +/-    1.84       4.8 +/-    1.84  0.100 / 0.300
G10     238.7          15.1                7.8 +/-    1.29      19.4 +/-    1.29  0.110 / 0.360
G13     71.1           36.1                7.2 +/-    0.64      11.3 +/-    0.64  0.180 / 0.200
G15     117.5          54.5                8.6 +/-    0.46      10.3 +/-    0.46  0.120 / 0.150
G16     310.2          13.9                4.2 +/-    1.91      10.6 +/-    1.91  0.050 / 0.060
G20     267.2          62.9                7.5 +/-    0.56       8.4 +/-    0.56  0.040 / 0.050
G21     316.5          49.3                5.8 +/-    1.33       7.3 +/-    1.33  0.060 / 0.050
G26     282.1          20.3                4.9 +/-    4.27      10.7 +/-    4.27  0.080 / 0.040
G29     158.8          68.5                7.8 +/-    0.98       8.4 +/-    0.98  0.040 / 0.030