PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/05-00:42:50
G01     67.5           32.5                9.1 +/-    1.51      15.2 +/-    1.51  0.040 / 0.040
G07     139.1          28.8                9.9 +/-    1.47      17.8 +/-    1.47  0.050 / 0.050
G11     53.6           31.2                8.4 +/-    1.17      14.4 +/-    1.17  0.040 / 0.080
G13     271.7          36.8                8.7 +/-    2.35      13.4 +/-    2.35  0.050 / 0.060
G15     299.4          16.2                6.6 +/-    2.79      16.0 +/-    2.79  0.040 / 0.030
G17     237.9          69.1                9.2 +/-    0.40       9.8 +/-    0.40  0.030 / 0.030
G19     226.6          44.8                9.2 +/-    1.80      12.5 +/-    1.80  0.080 / 0.090
G28     25.7           58.3               11.3 +/-    1.40      13.1 +/-    1.40  0.070 / 0.100
G30     137.9          55.1               11.1 +/-    0.62      13.3 +/-    0.62  0.060 / 0.130