PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/20-10:42:50
G08     320.7          10.4              -15.0 +/-   15.50     -41.4 +/-   15.50  0.100 / 0.300
G10     311.2          55.7                3.4 +/-    1.95       4.0 +/-    1.95  0.250 / 0.360
G14     213.5          17.9                4.9 +/-    1.71      11.4 +/-    1.71  0.040 / 0.070
G15     45.5           19.0                2.2 +/-    2.60       5.0 +/-    2.60  0.050 / 0.060
G20     73.1           23.6                3.0 +/-    1.97       6.0 +/-    1.97  0.060 / 0.130
G21     119.5          66.3                4.9 +/-    0.76       5.3 +/-    0.76  0.070 / 0.140
G24     87.7           29.3                4.9 +/-    1.72       8.7 +/-    1.72  0.040 / 0.040
G27     288.7          37.4                5.2 +/-    1.37       7.9 +/-    1.37  0.030 / 0.030
G32     215.1          42.3                5.3 +/-    0.82       7.4 +/-    0.82  0.100 / 0.100