PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/07-04:27:30
G03     240.5          68.6                4.7 +/-    1.09       5.0 +/-    1.09  0.130 / 0.260
G09     303.4          18.7                3.9 +/-    1.72       8.8 +/-    1.72  0.130 / 0.270
G14     98.6           16.2                3.5 +/-    1.97       8.6 +/-    1.97  0.040 / 0.040
G16     123.5          58.5                6.0 +/-    0.42       6.9 +/-    0.42  0.040 / 0.050
G22     198.2          56.1                5.5 +/-    0.59       6.5 +/-    0.59  0.040 / 0.040
G23     321.1          51.1                5.0 +/-    1.50       6.2 +/-    1.50  0.040 / 0.050
G26     68.7           51.1                4.0 +/-    0.53       5.0 +/-    0.53  0.070 / 0.120
G31     52.9           18.0                2.3 +/-    2.95       5.4 +/-    2.95  0.080 / 0.150