PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/31-08:42:30
G02     199.4          15.6                4.8 +/-    7.15      11.8 +/-    7.15  0.090 / 0.170
G06     171.0          48.2               10.0 +/-    0.96      12.9 +/-    0.96  0.100 / 0.170
G13     229.8          17.2                5.9 +/-    1.79      14.0 +/-    1.79  0.150 / 0.140
G17     14.4           64.6                6.3 +/-    0.55       6.9 +/-    0.55  0.140 / 0.120
G19     309.7          72.5                6.8 +/-    0.72       7.1 +/-    0.72  0.030 / 0.040
G24     313.6          24.1                4.5 +/-    1.68       9.0 +/-    1.68  0.050 / 0.030
G28     74.2           49.1                7.0 +/-    0.84       8.9 +/-    0.84  0.050 / 0.060
G30     157.3          22.6                7.7 +/-    1.61      15.8 +/-    1.61  0.060 / 0.060