PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/30-02:28:00
G01     245.0          32.3                7.3 +/-    0.93      12.1 +/-    0.93  0.040 / 0.040
G03     314.7          47.8                1.6 +/-    0.94       2.1 +/-    0.94  0.040 / 0.040
G14     65.5           37.9                3.4 +/-    0.72       5.1 +/-    0.72  0.050 / 0.120
G16     159.0          24.2                4.4 +/-    9.73       8.8 +/-    9.73  0.050 / 0.100
G18     215.5          22.6                8.5 +/-    2.16      17.5 +/-    2.16  0.080 / 0.120
G22     295.9          69.8                3.4 +/-    0.92       3.6 +/-    0.92  0.080 / 0.120
G23     290.4          21.8                4.7 +/-    2.99      10.0 +/-    2.99  0.090 / 0.240
G26     130.0          42.7                6.7 +/-    0.98       9.3 +/-    0.98  0.150 / 0.190
G31     40.6           52.6                2.8 +/-    0.51       3.4 +/-    0.51  0.080 / 0.280
G32     82.3           18.7                3.9 +/-    0.65       9.0 +/-    0.65  0.080 / 0.240