PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/20-22:27:30
G01     298.4          39.4                9.9 +/-    1.22      14.6 +/-    1.22  0.080 / 0.140
G10     113.2          32.6               11.4 +/-    1.31      18.9 +/-    1.31  0.090 / 0.130
G11     276.2          26.0               12.5 +/-    1.29      24.0 +/-    1.29  0.050 / 0.080
G14     3.2            65.1                9.1 +/-    0.53      10.0 +/-    0.53  0.060 / 0.080
G22     312.1          30.1                9.1 +/-    1.89      16.0 +/-    1.89  0.070 / 0.210
G25     75.7           17.8               10.1 +/-    1.08      23.4 +/-    1.08  0.080 / 0.170
G31     152.2          72.9               12.1 +/-    0.95      12.6 +/-    0.95  0.040 / 0.060
G32     44.4           46.4                8.0 +/-    0.43      10.5 +/-    0.43  0.040 / 0.060