PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/12-12:12:50
G01     220.2          11.7                5.6 +/-    1.53      15.1 +/-    1.53  0.030 / 0.040
G03     251.5          72.0                5.0 +/-    0.76       5.2 +/-    0.76  0.040 / 0.060
G09     298.0          11.3               -1.3 +/-   22.71      -3.4 +/-   22.71  0.120 / 0.510
G14     93.1           19.0                5.4 +/-    1.31      12.1 +/-    1.31  0.120 / 0.400
G16     142.3          50.8                7.6 +/-    1.32       9.6 +/-    1.32  0.240 / 0.390
G22     197.2          61.5                4.3 +/-    1.37       4.9 +/-    1.37  0.240 / 0.410
G23     313.8          43.9                3.3 +/-    1.04       4.5 +/-    1.04  0.100 / 0.250
G26     85.8           55.1                5.7 +/-    1.30       6.8 +/-    1.30  0.090 / 0.260
G31     48.6           25.7                5.7 +/-    0.92      10.9 +/-    0.92  0.060 / 0.080