PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/14-21:12:40
G07     321.9          54.4               11.3 +/-    1.06      13.5 +/-    1.06  0.280 / 0.490
G08     113.9          46.7               12.0 +/-    0.84      15.8 +/-    0.84  0.310 / 0.320
G09     244.3          83.2               11.0 +/-    0.85      11.0 +/-    0.85  0.080 / 0.070
G16     43.2           20.1                8.6 +/-    2.93      18.8 +/-    2.93  0.060 / 0.060
G23     151.1          56.2               11.4 +/-    0.86      13.4 +/-    0.86  0.030 / 0.050
G27     70.9           37.6               11.3 +/-    1.12      17.2 +/-    1.12  0.050 / 0.050
G28     228.4          16.8                9.4 +/-   10.31      22.4 +/-   10.31  0.040 / 0.030
G30     292.4          27.2               10.3 +/-    2.22      19.2 +/-    2.22  0.040 / 0.030