PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/28-05:43:00
G02     59.8           31.7                3.8 +/-    0.64       6.5 +/-    0.64  0.040 / 0.090
G05     58.5           60.5                5.6 +/-    0.55       6.3 +/-    0.55  0.050 / 0.090
G12     185.9          34.6                7.9 +/-    2.58      12.6 +/-    2.58  0.130 / 0.410
G13     129.6          14.3                6.7 +/-    2.85      16.9 +/-    2.85  0.130 / 0.420
G15     163.5          11.7                4.6 +/-    3.62      12.3 +/-    3.62  0.040 / 0.040
G20     213.5          41.0                9.4 +/-    1.22      13.4 +/-    1.22  0.040 / 0.040
G21     270.6          17.2                7.5 +/-    2.47      17.8 +/-    2.47  0.060 / 0.110
G25     240.3          52.8                6.1 +/-    1.18       7.5 +/-    1.18  0.070 / 0.120
G29     327.8          53.7                3.4 +/-    0.78       4.1 +/-    0.78  0.060 / 0.090