PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/10-06:57:30
G05     52.0           9.5                 1.6 +/-    2.83       4.7 +/-    2.83  0.060 / 0.330
G10     241.2          17.6                7.0 +/-    0.99      16.3 +/-    0.99  0.080 / 0.320
G13     66.8           35.4                6.3 +/-    1.17      10.0 +/-    1.17  0.110 / 0.270
G15     109.5          56.0                7.3 +/-    0.32       8.7 +/-    0.32  0.130 / 0.340
G16     307.4          14.5                1.1 +/-    1.52       2.7 +/-    1.52  0.040 / 0.040
G20     327.4          75.5                6.6 +/-    0.24       6.8 +/-    0.24  0.040 / 0.040
G21     320.7          52.2                5.1 +/-    0.78       6.3 +/-    0.78  0.040 / 0.050
G26     278.7          19.5                4.7 +/-    1.49      10.4 +/-    1.49  0.030 / 0.050
G29     160.4          63.6                7.9 +/-    0.25       8.7 +/-    0.25  0.030 / 0.040