PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/14-02:27:50
G01     245.2          32.2                9.4 +/-    1.26      15.7 +/-    1.26  0.080 / 0.090
G03     314.6          47.0                4.6 +/-    1.50       6.1 +/-    1.50  0.090 / 0.130
G14     66.7           36.5                5.2 +/-    0.58       8.0 +/-    0.58  0.030 / 0.040
G16     164.0          20.8               10.1 +/-    1.67      21.9 +/-    1.67  0.040 / 0.040
G22     297.1          69.7                7.4 +/-    1.00       7.8 +/-    1.00  0.070 / 0.160
G23     289.9          21.2                6.6 +/-    1.53      14.0 +/-    1.53  0.070 / 0.170
G26     137.1          40.8                9.7 +/-    0.69      13.9 +/-    0.69  0.060 / 0.230
G31     39.0           57.1                5.0 +/-    0.60       5.8 +/-    0.60  0.070 / 0.250
G32     80.5           22.2                4.9 +/-    0.73      10.2 +/-    0.73  0.030 / 0.040