PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/23-13:42:40
G02     13.1           68.5                4.3 +/-    0.92       4.5 +/-    0.92  0.050 / 0.070
G05     161.0          46.1                8.1 +/-    2.53      10.8 +/-    2.53  0.070 / 0.080
G06     46.8           26.7                4.6 +/-    3.02       8.7 +/-    3.02  0.120 / 0.330
G12     237.7          79.9                5.0 +/-    0.84       5.0 +/-    0.84  0.180 / 0.300
G19     86.7           21.2                7.1 +/-    2.98      15.3 +/-    2.98  0.030 / 0.030
G24     214.6          11.3                4.3 +/-    1.82      11.8 +/-    1.82  0.030 / 0.030
G25     309.8          46.1                5.8 +/-    2.26       7.7 +/-    2.26  0.110 / 0.110
G29     297.1          18.0                3.3 +/-    1.17       7.6 +/-    1.17  0.070 / 0.100