PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/29-07:27:40
G01     124.0          12.5                7.0 +/-    2.35      18.5 +/-    2.35  0.040 / 0.030
G07     61.8           68.5                6.4 +/-    0.49       6.8 +/-    0.49  0.040 / 0.030
G08     50.3           40.0                5.4 +/-    0.92       7.8 +/-    0.92  0.200 / 0.420
G09     176.7          33.5                6.3 +/-    1.20      10.3 +/-    1.20  0.180 / 0.290
G11     118.6          37.2                5.7 +/-    1.01       8.7 +/-    1.01  0.090 / 0.250
G13     320.2          14.2                3.9 +/-    2.60      10.0 +/-    2.60  0.110 / 0.250
G17     200.0          14.8                5.3 +/-    3.57      13.1 +/-    3.57  0.080 / 0.090
G18     101.5          17.5                5.1 +/-    1.17      11.9 +/-    1.17  0.080 / 0.110
G28     270.7          47.9                6.7 +/-    1.71       8.7 +/-    1.71  0.030 / 0.030
G30     331.7          60.4                4.4 +/-    0.61       4.9 +/-    0.61  0.030 / 0.030