PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/13-05:58:10
G10     272.4          41.0                8.1 +/-    0.69      11.5 +/-    0.69  0.100 / 0.480
G13     40.0           14.7                4.5 +/-    3.02      11.3 +/-    3.02  0.090 / 0.570
G15     54.5           44.8                5.3 +/-    0.69       7.2 +/-    0.69  0.070 / 0.140
G16     273.8          10.3                4.6 +/-    3.03      12.7 +/-    3.03  0.070 / 0.110
G20     6.5            66.0                5.5 +/-    0.62       6.0 +/-    0.62  0.070 / 0.070
G21     15.5           74.6                6.9 +/-    0.82       7.1 +/-    0.82  0.070 / 0.070
G24     116.0          17.0                6.4 +/-    1.73      15.2 +/-    1.73  0.080 / 0.200
G27     315.9          22.9                3.6 +/-    1.92       7.3 +/-    1.92  0.080 / 0.210
G29     168.6          26.5                7.0 +/-    1.11      13.2 +/-    1.11  0.040 / 0.040
G32     204.7          15.2                7.5 +/-    3.56      18.7 +/-    3.56  0.040 / 0.050