PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/15-04:12:40
G01     318.1          21.1                7.6 +/-    2.57      16.3 +/-    2.57  0.160 / 0.210
G08     258.2          12.3                8.9 +/-    2.23      23.6 +/-    2.23  0.150 / 0.300
G10     84.2           50.4                7.3 +/-    0.90       9.1 +/-    0.90  0.030 / 0.040
G11     301.1          23.7                7.8 +/-    1.19      15.8 +/-    1.19  0.040 / 0.040
G14     302.1          71.0                6.0 +/-    0.32       6.3 +/-    0.32  0.250 / 0.300
G18     301.9          42.9                6.5 +/-    2.33       9.0 +/-    2.33  0.120 / 0.190
G20     107.5          27.7                7.5 +/-    1.09      13.9 +/-    1.09  0.080 / 0.050
G22     302.3          12.1                7.8 +/-    2.95      20.8 +/-    2.95  0.070 / 0.050
G31     173.9          45.6                7.7 +/-    1.23      10.3 +/-    1.23  0.050 / 0.070
G32     8.7            66.8                4.4 +/-    0.77       4.7 +/-    0.77  0.060 / 0.100