PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/28-11:13:10
G07     25.3           68.3                3.8 +/-    0.68       4.1 +/-    0.68  0.100 / 0.110
G08     67.4           50.8                3.5 +/-    0.95       4.3 +/-    0.95  0.100 / 0.110
G09     180.1          50.8                5.3 +/-    0.63       6.6 +/-    0.63  0.030 / 0.040
G11     130.7          28.2                4.3 +/-    1.16       7.9 +/-    1.16  0.030 / 0.040
G18     113.8          10.1               -8.1 +/-   15.68     -22.7 +/-   15.68  0.170 / 0.140
G23     158.7          16.4                3.5 +/-    1.08       8.3 +/-    1.08  0.150 / 0.210
G27     40.9           18.0                3.6 +/-    1.65       8.3 +/-    1.65  0.050 / 0.050
G28     254.3          39.7                5.3 +/-    1.58       7.8 +/-    1.58  0.040 / 0.050
G30     320.4          51.2                3.2 +/-    0.90       4.0 +/-    0.90  0.040 / 0.050