PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/05-11:27:40
G01     88.8           32.0                3.8 +/-    0.91       6.4 +/-    0.91  0.020 / 0.020
G07     126.6          44.2                5.9 +/-    1.01       8.0 +/-    1.01  0.020 / 0.020
G11     65.7           38.2                3.8 +/-    1.25       5.6 +/-    1.25  0.110 / 0.080
G13     292.9          36.7                5.1 +/-    2.14       7.9 +/-    2.14  0.090 / 0.100
G17     214.7          57.2                5.6 +/-    0.70       6.5 +/-    0.70  0.090 / 0.110
G18     61.8           23.2                2.3 +/-    2.23       4.6 +/-    2.23  0.100 / 0.110
G19     215.4          24.3                5.9 +/-    1.88      11.8 +/-    1.88  0.050 / 0.050
G28     350.6          61.7                2.5 +/-    0.38       2.8 +/-    0.38  0.050 / 0.040
G30     103.5          77.4                3.9 +/-    0.52       4.0 +/-    0.52  0.090 / 0.130