PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/30-07:12:40
G07     47.2           69.3                5.3 +/-    0.86       5.6 +/-    0.86  0.030 / 0.030
G08     54.5           43.7                5.4 +/-    0.87       7.4 +/-    0.87  0.030 / 0.030
G09     177.1          38.7                7.0 +/-    0.98      10.3 +/-    0.98  0.120 / 0.300
G11     123.8          34.3                7.9 +/-    0.77      12.8 +/-    0.77  0.060 / 0.320
G18     106.0          15.1                5.4 +/-    0.84      13.5 +/-    0.84  0.120 / 0.350
G23     160.2          9.9                 3.5 +/-    6.19       9.9 +/-    6.19  0.120 / 0.310
G27     37.6           10.1                1.6 +/-    6.17       4.4 +/-    6.17  0.060 / 0.070
G28     264.4          44.9                5.8 +/-    3.58       7.9 +/-    3.58  0.050 / 0.070
G30     326.6          56.3                4.7 +/-    0.97       5.5 +/-    0.97  0.040 / 0.050