PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/15-14:12:50
G01     273.2          41.8                6.8 +/-    0.89       9.6 +/-    0.89  0.040 / 0.060
G03     315.9          30.8                5.7 +/-    1.56       9.8 +/-    1.56  0.050 / 0.050
G10     128.3          17.6                8.5 +/-    1.47      19.7 +/-    1.47  0.050 / 0.070
G11     251.1          20.5                8.3 +/-    1.78      18.0 +/-    1.78  0.050 / 0.090
G14     41.7           50.7                4.8 +/-    0.33       6.0 +/-    0.33  0.080 / 0.240
G18     232.4          40.0               10.0 +/-    1.59      14.5 +/-    1.59  0.090 / 0.190
G22     314.7          53.4                6.1 +/-    0.87       7.4 +/-    0.87  0.100 / 0.220
G25     52.9           16.0                5.7 +/-    1.88      13.7 +/-    1.88  0.090 / 0.230
G31     66.6           77.9                7.2 +/-    0.86       7.3 +/-    0.86  0.040 / 0.070
G32     59.4           37.5                5.2 +/-    1.00       7.9 +/-    1.00  0.040 / 0.070