PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/31-09:13:10
G01     43.6           19.7                3.0 +/-    0.80       6.7 +/-    0.80  0.060 / 0.090
G06     175.6          34.3                6.8 +/-    1.60      11.0 +/-    1.60  0.070 / 0.100
G13     241.2          25.2                5.6 +/-    2.21      10.9 +/-    2.21  0.120 / 0.160
G15     278.3          13.1                2.9 +/-    2.12       7.5 +/-    2.12  0.130 / 0.170
G17     358.3          72.6                6.4 +/-    1.04       6.6 +/-    1.04  0.080 / 0.140
G19     260.0          63.3                4.3 +/-    0.79       4.7 +/-    0.79  0.080 / 0.180
G24     316.7          18.7                2.6 +/-    1.66       6.0 +/-    1.66  0.070 / 0.100
G28     63.7           50.1                4.3 +/-    0.86       5.4 +/-    0.86  0.080 / 0.140
G30     153.8          33.9                7.4 +/-    1.20      11.9 +/-    1.20  0.100 / 0.240