PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/30-14:27:50
G02     70.0           23.7                6.2 +/-    0.82      12.6 +/-    0.82  0.030 / 0.040
G05     47.7           53.7                5.5 +/-    0.44       6.6 +/-    0.44  0.030 / 0.050
G12     179.8          18.1                6.9 +/-    1.58      15.9 +/-    1.58  0.090 / 0.220
G13     115.7          23.1               10.2 +/-    2.40      20.7 +/-    2.40  0.100 / 0.200
G15     155.1          23.9                9.0 +/-    1.39      18.1 +/-    1.39  0.060 / 0.100
G20     225.1          10.7               -3.9 +/-   19.13     -10.7 +/-   19.13  0.060 / 0.130
G21     282.2          24.7                6.7 +/-    1.40      13.3 +/-    1.40  0.060 / 0.090
G25     222.1          42.1                6.6 +/-    1.53       9.3 +/-    1.53  0.040 / 0.080
G26     319.0          10.2              -21.2 +/-    9.60     -59.0 +/-    9.60  0.030 / 0.040
G29     336.9          66.1                4.2 +/-    0.89       4.6 +/-    0.89  0.030 / 0.040