PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/03-05:57:40
G10     253.4          28.7                7.6 +/-    1.37      13.7 +/-    1.37  0.150 / 0.400
G13     51.0           28.3                2.9 +/-    0.49       5.3 +/-    0.49  0.100 / 0.470
G15     79.4           56.3                3.5 +/-    0.65       4.1 +/-    0.65  0.050 / 0.050
G16     292.0          15.3                3.1 +/-    2.63       7.6 +/-    2.63  0.040 / 0.040
G20     332.3          71.3                4.1 +/-    0.88       4.3 +/-    0.88  0.080 / 0.120
G21     337.6          62.4                2.8 +/-    0.57       3.1 +/-    0.57  0.090 / 0.100
G26     263.6          14.3                5.0 +/-    1.28      12.6 +/-    1.28  0.030 / 0.040
G29     165.8          46.6                5.6 +/-    0.77       7.3 +/-    0.77  0.040 / 0.050