PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/29-18:43:10
G10     284.2          47.1                8.2 +/-    2.81      10.8 +/-    2.81  0.080 / 0.150
G15     49.8           39.8                6.3 +/-    1.15       9.1 +/-    1.15  0.080 / 0.160
G20     329.0          64.8                8.1 +/-    0.78       8.8 +/-    0.78  0.040 / 0.040
G21     61.2           76.7                8.1 +/-    0.95       8.3 +/-    0.95  0.040 / 0.030
G24     103.8          22.2                8.2 +/-    1.72      17.0 +/-    1.72  0.080 / 0.160
G27     310.8          27.8                6.8 +/-    1.67      12.4 +/-    1.67  0.080 / 0.090
G29     168.3          16.4                9.1 +/-    1.43      21.8 +/-    1.43  0.050 / 0.060
G32     207.1          22.8               10.1 +/-    1.17      20.7 +/-    1.17  0.070 / 0.060