PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/04-07:13:00
G01     59.5           29.6                3.6 +/-    2.46       6.3 +/-    2.46  0.040 / 0.030
G06     179.2          14.2                2.0 +/-   17.52       5.0 +/-   17.52  0.040 / 0.030
G07     141.3          23.0                6.8 +/-    2.66      13.9 +/-    2.66  0.110 / 0.220
G11     49.6           27.7                3.2 +/-    1.42       5.9 +/-    1.42  0.140 / 0.180
G13     262.4          36.7                5.6 +/-    1.78       8.7 +/-    1.78  0.080 / 0.110
G15     293.2          16.9                3.0 +/-    1.45       7.2 +/-    1.45  0.120 / 0.140
G17     251.9          75.7                7.0 +/-    0.55       7.2 +/-    0.55  0.030 / 0.030
G19     230.6          52.0                6.3 +/-    2.73       7.7 +/-    2.73  0.030 / 0.020
G28     18.7           60.4                2.1 +/-    0.96       2.4 +/-    0.96  0.050 / 0.040
G30     143.8          57.0                8.0 +/-    0.75       9.3 +/-    0.75  0.040 / 0.040