PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/23-13:57:50
G02     72.9           22.4                4.3 +/-    1.22       8.9 +/-    1.22  0.130 / 0.110
G05     45.8           47.6                3.9 +/-    0.48       5.0 +/-    0.48  0.080 / 0.110
G12     181.0          15.6                6.1 +/-    0.94      15.0 +/-    0.94  0.190 / 0.200
G13     112.7          26.2                8.5 +/-    1.43      16.1 +/-    1.43  0.140 / 0.290
G15     156.1          25.5                8.2 +/-    1.93      15.8 +/-    1.93  0.030 / 0.030
G20     226.9          12.0                4.4 +/-    2.08      11.8 +/-    2.08  0.030 / 0.030
G21     286.8          29.5                4.5 +/-    2.14       7.9 +/-    2.14  0.040 / 0.050
G25     212.1          35.5                6.6 +/-    1.71      10.4 +/-    1.71  0.030 / 0.050
G26     317.4          11.6                1.0 +/-    4.81       2.6 +/-    4.81  0.090 / 0.180
G29     343.2          72.6                5.4 +/-    0.76       5.6 +/-    0.76  0.100 / 0.190