PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/17-09:42:40
G01     310.9          30.1                6.2 +/-    0.95      10.9 +/-    0.95  0.050 / 0.040
G10     101.0          43.4                6.3 +/-    0.73       8.7 +/-    0.73  0.040 / 0.040
G11     288.1          27.2                5.6 +/-    1.57      10.3 +/-    1.57  0.080 / 0.120
G14     331.3          69.1                4.9 +/-    0.35       5.2 +/-    0.35  0.090 / 0.120
G18     285.8          48.2                8.3 +/-    5.78      10.7 +/-    5.78  0.120 / 0.180
G22     309.0          26.2                5.8 +/-    1.64      11.0 +/-    1.64  0.170 / 0.190
G25     87.4           15.2                3.4 +/-    3.16       8.5 +/-    3.16  0.060 / 0.150
G31     166.4          61.7                6.9 +/-    0.40       7.7 +/-    0.40  0.060 / 0.160
G32     33.2           54.4                3.8 +/-    1.31       4.6 +/-    1.31  0.100 / 0.200