PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/17-02:12:40
G03     283.2          68.0                1.1 +/-    1.26       1.2 +/-    1.26  0.040 / 0.040
G09     297.2          13.8                4.2 +/-    1.24      10.8 +/-    1.24  0.040 / 0.040
G14     88.6           22.8                2.5 +/-    1.43       5.2 +/-    1.43  0.100 / 0.240
G16     142.9          47.8                6.6 +/-    0.88       8.5 +/-    0.88  0.090 / 0.280
G22     214.3          68.9                3.8 +/-    0.60       4.0 +/-    0.60  0.050 / 0.080
G23     308.3          37.7                3.2 +/-    1.33       4.9 +/-    1.33  0.050 / 0.090
G26     92.7           54.5                4.2 +/-    0.67       5.0 +/-    0.67  0.090 / 0.250
G31     46.1           30.7                2.0 +/-    0.41       3.5 +/-    0.41  0.100 / 0.200