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                4.6 +/-    0.55       4.9 +/-    0.55  0.030 / 0.030
G05     161.0          46.1                7.8 +/-    0.94      10.3 +/-    0.94  0.030 / 0.030
G06     46.8           26.7                2.1 +/-    2.01       4.0 +/-    2.01  0.110 / 0.070
G12     237.7          79.9                6.5 +/-    0.52       6.6 +/-    0.52  0.120 / 0.080
G19     86.7           21.2                6.3 +/-    2.72      13.5 +/-    2.72  0.160 / 0.300
G24     214.6          11.3                4.7 +/-    2.30      12.8 +/-    2.30  0.140 / 0.360
G25     309.8          46.1                5.2 +/-    2.05       6.9 +/-    2.05  0.040 / 0.050
G29     297.1          18.0                6.2 +/-    2.79      14.3 +/-    2.79  0.050 / 0.050