PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/24-09:57:50
G01     95.3           30.4                6.6 +/-    1.40      11.5 +/-    1.40  0.040 / 0.050
G07     121.4          48.5                8.5 +/-    0.64      11.0 +/-    0.64  0.030 / 0.040
G11     72.4           40.7                5.6 +/-    1.19       8.1 +/-    1.19  0.030 / 0.020
G13     299.1          34.8                5.5 +/-    1.18       8.8 +/-    1.18  0.020 / 0.020
G17     210.9          51.0                7.9 +/-    0.67       9.9 +/-    0.67  0.070 / 0.120
G18     66.8           23.9                4.2 +/-    0.85       8.3 +/-    0.85  0.090 / 0.130
G19     213.1          19.0                5.9 +/-    3.12      13.3 +/-    3.12  0.050 / 0.050
G28     338.1          61.8                4.5 +/-    0.42       5.0 +/-    0.42  0.040 / 0.050
G30     78.6           79.9                5.7 +/-    0.51       5.7 +/-    0.51  0.070 / 0.090