PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/09-00:42:50
G01     117.3          19.3                9.6 +/-    1.34      21.5 +/-    1.34  0.040 / 0.090
G07     85.2           65.6                6.5 +/-    0.30       7.1 +/-    0.30  0.050 / 0.080
G08     44.7           31.4                4.9 +/-    0.48       8.3 +/-    0.48  0.040 / 0.060
G09     177.5          24.9                7.1 +/-    1.77      13.9 +/-    1.77  0.040 / 0.050
G11     107.3          40.6                7.9 +/-    1.06      11.5 +/-    1.06  0.080 / 0.140
G13     317.1          20.2                4.0 +/-    1.70       8.8 +/-    1.70  0.060 / 0.160
G17     202.6          25.7                8.0 +/-    2.48      15.4 +/-    2.48  0.130 / 0.260
G28     297.8          58.5                4.9 +/-    0.62       5.6 +/-    0.62  0.130 / 0.190
G30     3.3            72.8                5.9 +/-    0.96       6.1 +/-    0.96  0.110 / 0.340