PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/13-02:27:40
G01     224.9          15.8                6.1 +/-    2.86      14.9 +/-    2.86  0.040 / 0.040
G03     284.9          67.7                2.8 +/-    1.06       3.0 +/-    1.06  0.040 / 0.040
G09     296.9          13.6                3.8 +/-    1.29       9.8 +/-    1.29  0.130 / 0.170
G14     88.0           23.3                3.7 +/-    1.21       7.5 +/-    1.21  0.140 / 0.180
G16     143.3          47.2                8.0 +/-    0.68      10.5 +/-    0.68  0.110 / 0.210
G22     215.6          69.4                5.5 +/-    0.94       5.8 +/-    0.94  0.100 / 0.230
G23     307.9          37.3                3.8 +/-    1.05       5.8 +/-    1.05  0.060 / 0.090
G26     93.6           54.4                5.7 +/-    0.84       6.8 +/-    0.84  0.060 / 0.120
G31     45.9           31.0                2.2 +/-    0.67       3.8 +/-    0.67  0.050 / 0.070