PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/17-04:27:50
G01     243.7          32.9                7.1 +/-    1.97      11.7 +/-    1.97  0.040 / 0.030
G03     315.1          48.3                4.2 +/-    0.79       5.4 +/-    0.79  0.040 / 0.040
G14     63.7           39.2                5.3 +/-    0.92       7.8 +/-    0.92  0.050 / 0.110
G16     159.6          22.8                3.8 +/-    1.59       7.7 +/-    1.59  0.060 / 0.080
G18     216.4          23.2                6.8 +/-    2.42      13.9 +/-    2.42  0.100 / 0.120
G22     297.3          69.1                5.1 +/-    0.91       5.4 +/-    0.91  0.060 / 0.100
G23     291.7          25.2                6.1 +/-    0.62      11.9 +/-    0.62  0.080 / 0.260
G26     131.2          42.0                5.6 +/-    0.77       8.0 +/-    0.77  0.080 / 0.270
G31     41.3           51.8               -4.0 +/-    0.59      -5.0 +/-    0.59  0.170 / 0.330
G32     80.8           20.3                4.3 +/-    2.35       9.4 +/-    2.35  0.120 / 0.250