PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/27-02:27:40
G01     285.3          41.0                6.3 +/-    1.40       9.0 +/-    1.40  0.060 / 0.100
G03     312.9          18.4                5.4 +/-    1.81      12.3 +/-    1.81  0.070 / 0.090
G10     122.7          26.4                7.2 +/-    1.18      13.6 +/-    1.18  0.050 / 0.080
G11     259.2          25.5                9.0 +/-    1.17      17.3 +/-    1.17  0.040 / 0.090
G14     32.0           55.4                4.7 +/-    1.36       5.5 +/-    1.36  0.050 / 0.050
G22     314.2          41.2                6.0 +/-    1.96       8.6 +/-    1.96  0.040 / 0.050
G25     60.2           17.7                5.0 +/-    0.70      11.7 +/-    0.70  0.040 / 0.060
G26     157.4          14.6                7.2 +/-    2.69      18.2 +/-    2.69  0.040 / 0.050
G31     122.6          81.0                5.9 +/-    0.39       6.0 +/-    0.39  0.020 / 0.030
G32     52.3           42.0                4.7 +/-    0.91       6.6 +/-    0.91  0.030 / 0.030