PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/09-04:28:10
G01     319.4          17.9                0.2 +/-   28.41       0.5 +/-   28.41  0.040 / 0.030
G08     261.4          14.2                8.1 +/-    2.49      20.6 +/-    2.49  0.050 / 0.040
G10     78.4           52.6                7.3 +/-    1.22       8.9 +/-    1.22  0.170 / 0.240
G11     304.6          22.0                6.4 +/-    1.91      13.5 +/-    1.91  0.150 / 0.110
G14     290.3          70.3                7.0 +/-    0.73       7.4 +/-    0.73  0.070 / 0.040
G18     305.7          40.2                6.6 +/-    2.29       9.6 +/-    2.29  0.070 / 0.050
G20     104.2          30.4                5.9 +/-    0.98      10.2 +/-    0.98  0.080 / 0.100
G31     175.0          41.3                8.3 +/-    0.94      11.8 +/-    0.94  0.080 / 0.080
G32     0.1            69.6                7.1 +/-    0.71       7.6 +/-    0.71  0.030 / 0.030