PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/05-21:42:30
G07     317.4          52.5                9.8 +/-    0.82      12.0 +/-    0.82  0.110 / 0.220
G08     118.0          44.9               12.6 +/-    0.97      17.0 +/-    0.97  0.140 / 0.340
G09     271.2          83.0               11.0 +/-    1.23      11.1 +/-    1.23  0.050 / 0.070
G16     42.7           22.4                7.5 +/-    1.61      15.5 +/-    1.61  0.060 / 0.060
G23     149.2          59.8               11.0 +/-    0.33      12.5 +/-    0.33  0.040 / 0.060
G27     75.2           38.1                9.8 +/-    0.89      14.7 +/-    0.89  0.030 / 0.050
G28     226.6          14.4                9.8 +/-   14.80      24.7 +/-   14.80  0.270 / 0.920
G30     289.9          25.1                9.3 +/-    1.46      18.1 +/-    1.46  0.210 / 0.390