PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/23-11:58:00
G01     318.6          19.8                4.1 +/-    1.40       9.1 +/-    1.40  0.190 / 0.200
G08     255.1          12.5                5.3 +/-    1.19      13.9 +/-    1.19  0.180 / 0.290
G10     82.8           51.3                5.0 +/-    0.99       6.2 +/-    0.99  0.040 / 0.020
G11     300.7          24.4                3.2 +/-    1.78       6.3 +/-    1.78  0.030 / 0.020
G14     304.3          71.6                4.4 +/-    0.58       4.6 +/-    0.58  0.040 / 0.050
G18     301.2          43.9                5.4 +/-    2.88       7.4 +/-    2.88  0.040 / 0.050
G20     106.9          27.7                6.4 +/-    2.19      11.7 +/-    2.19  0.030 / 0.030
G22     302.7          15.0                3.1 +/-    2.00       7.7 +/-    2.00  0.040 / 0.040
G31     177.2          42.1                7.5 +/-    0.64      10.5 +/-    0.64  0.090 / 0.250
G32     358.9          69.0                4.8 +/-    0.89       5.1 +/-    0.89  0.100 / 0.240