PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/26-08:42:50
G01     124.3          13.8                5.9 +/-    3.74      15.0 +/-    3.74  0.040 / 0.060
G07     65.3           68.4                4.5 +/-    0.48       4.8 +/-    0.48  0.040 / 0.060
G08     47.2           34.9                3.5 +/-    0.52       5.5 +/-    0.52  0.140 / 0.320
G09     173.9          27.6                8.1 +/-    0.82      14.9 +/-    0.82  0.160 / 0.350
G11     112.8          37.4                6.8 +/-    0.81      10.4 +/-    0.81  0.040 / 0.040
G13     320.0          14.8                0.2 +/-    2.14       0.6 +/-    2.14  0.030 / 0.040
G17     199.7          19.8                5.5 +/-    1.65      12.1 +/-    1.65  0.120 / 0.450
G18     99.0           18.2                5.5 +/-    0.97      12.6 +/-    0.97  0.110 / 0.510
G28     280.4          53.9                5.7 +/-    0.59       6.9 +/-    0.59  0.120 / 0.290
G30     334.6          62.1                3.3 +/-    0.69       3.6 +/-    0.69  0.110 / 0.260