PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/21-16:57:30
G01     319.6          16.2                5.2 +/-    1.71      12.7 +/-    1.71  0.150 / 0.340
G08     260.6          14.1                7.8 +/-    1.42      19.7 +/-    1.42  0.160 / 0.310
G10     76.1           54.8                6.9 +/-    0.55       8.2 +/-    0.55  0.030 / 0.080
G11     306.3          20.8                6.5 +/-    3.22      14.0 +/-    3.22  0.040 / 0.070
G14     288.9          69.6                8.6 +/-    0.53       9.1 +/-    0.53  0.030 / 0.050
G18     101.1          28.4                7.9 +/-    0.79      14.3 +/-    0.79  0.040 / 0.050
G31     176.8          39.6               11.8 +/-    0.78      17.2 +/-    0.78  0.030 / 0.030
G32     3.5            68.8                8.4 +/-    1.01       9.0 +/-    1.01  0.030 / 0.030