PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/11-07:13:10
G08     293.7          23.0                4.7 +/-    1.67       9.7 +/-    1.67  0.080 / 0.100
G10     10.3           62.8                2.2 +/-    1.64       2.5 +/-    1.64  0.100 / 0.110
G14     229.4          47.0                8.1 +/-    2.92      10.6 +/-    2.92  0.040 / 0.080
G18     317.7          11.2               -8.2 +/-   16.78     -22.4 +/-   16.78  0.040 / 0.080
G20     65.6           52.1                4.6 +/-    1.46       5.6 +/-    1.46  0.030 / 0.020
G21     146.5          39.5                5.1 +/-    0.66       7.5 +/-    0.66  0.030 / 0.020
G24     55.6           25.0                4.4 +/-    2.16       8.7 +/-    2.16  0.090 / 0.130
G27     255.9          32.0                5.5 +/-    3.57       9.3 +/-    3.57  0.090 / 0.090
G32     242.5          63.8                7.1 +/-    0.81       7.8 +/-    0.81  0.110 / 0.130