PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/17-01:58:00
G01     254.0          36.6                4.5 +/-    0.94       6.9 +/-    0.94  0.040 / 0.050
G03     316.2          39.5                4.0 +/-    1.13       5.9 +/-    1.13  0.040 / 0.050
G11     238.2          14.3                5.5 +/-    1.50      14.0 +/-    1.50  0.070 / 0.080
G14     58.6           41.3                2.2 +/-    0.47       3.2 +/-    0.47  0.070 / 0.090
G22     308.1          62.7                4.6 +/-    1.09       5.1 +/-    1.09  0.020 / 0.040
G23     284.0          16.4                5.2 +/-    1.62      12.4 +/-    1.62  0.030 / 0.040
G25     40.3           10.4                3.3 +/-    3.02       9.3 +/-    3.02  0.160 / 0.370
G26     143.9          33.9                7.0 +/-    0.82      11.3 +/-    0.82  0.140 / 0.360
G31     40.8           65.6                2.0 +/-    0.43       2.2 +/-    0.43  0.050 / 0.070
G32     73.7           27.0                2.1 +/-    0.96       4.0 +/-    0.96  0.060 / 0.100