PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/05-11:57:40
G01     319.3          17.2                6.3 +/-    2.09      14.8 +/-    2.09  0.030 / 0.050
G08     262.9          13.5                6.1 +/-    1.38      15.7 +/-    1.38  0.030 / 0.040
G10     78.3           53.9                3.8 +/-    0.67       4.6 +/-    0.67  0.190 / 0.220
G11     305.5          21.2                5.6 +/-    1.75      12.0 +/-    1.75  0.180 / 0.270
G14     286.9          68.4                4.6 +/-    0.44       4.9 +/-    0.44  0.090 / 0.210
G18     306.0          38.8                4.1 +/-    1.88       6.0 +/-    1.88  0.100 / 0.290
G22     301.3          13.5                5.9 +/-    2.74      15.2 +/-    2.74  0.120 / 0.240
G31     174.7          42.7                6.0 +/-    0.69       8.4 +/-    0.69  0.120 / 0.300
G32     9.3            67.1                3.6 +/-    0.36       3.9 +/-    0.36  0.100 / 0.310