PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/13-02:27:50
G01     247.1          33.3                5.6 +/-    1.14       9.1 +/-    1.14  0.090 / 0.270
G03     315.2          45.2                3.5 +/-    1.63       4.7 +/-    1.63  0.080 / 0.230
G11     233.3          10.9                6.9 +/-    2.50      18.7 +/-    2.50  0.030 / 0.050
G14     64.9           37.6                2.1 +/-    0.76       3.2 +/-    0.76  0.040 / 0.050
G16     164.8          19.2                7.4 +/-    2.63      16.6 +/-    2.63  0.030 / 0.040
G22     300.4          68.2                3.9 +/-    0.86       4.1 +/-    0.86  0.030 / 0.050
G23     288.6          20.1                6.8 +/-    1.63      14.8 +/-    1.63  0.070 / 0.110
G26     138.7          39.3                9.3 +/-    0.94      13.7 +/-    0.94  0.060 / 0.110
G31     39.2           59.0                3.0 +/-    0.32       3.5 +/-    0.32  0.080 / 0.330
G32     78.9           23.4                2.9 +/-    1.19       5.8 +/-    1.19  0.110 / 0.390