PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/13-14:43:00
G03     212.8          62.6               10.4 +/-    1.82      11.6 +/-    1.82  0.140 / 0.400
G07     253.3          16.1                8.6 +/-    4.34      20.9 +/-    4.34  0.110 / 0.230
G09     306.2          21.6                7.4 +/-    3.64      15.6 +/-    3.64  0.040 / 0.040
G14     104.3          9.8                11.3 +/-    3.29      31.6 +/-    3.29  0.040 / 0.040
G16     123.1          62.0                9.8 +/-    0.41      11.0 +/-    0.41  0.190 / 0.390
G22     186.4          45.1               14.1 +/-    0.55      19.0 +/-    0.55  0.180 / 0.430
G23     323.9          53.9                8.7 +/-    0.47      10.5 +/-    0.47  0.040 / 0.060
G26     63.8           50.6                7.0 +/-    0.84       8.8 +/-    0.84  0.050 / 0.070
G31     55.2           15.9                6.3 +/-    3.08      15.2 +/-    3.08  0.120 / 0.210