PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/11-14:12:40
G03     190.2          24.8                7.9 +/-    3.86      15.6 +/-    3.86  0.120 / 0.140
G07     287.9          39.4                5.6 +/-    2.74       8.2 +/-    2.74  0.080 / 0.180
G08     145.9          22.5                8.0 +/-    1.51      16.6 +/-    1.51  0.120 / 0.140
G09     320.3          54.9                5.5 +/-    0.65       6.6 +/-    0.65  0.120 / 0.430
G16     46.5           47.2                5.4 +/-    0.71       7.1 +/-    0.71  0.060 / 0.090
G23     77.9           82.6                5.4 +/-    0.94       5.5 +/-    0.94  0.060 / 0.090
G26     43.5           18.4                5.0 +/-    3.24      11.5 +/-    3.24  0.040 / 0.060
G27     108.8          30.3                9.2 +/-    0.93      16.1 +/-    0.93  0.040 / 0.060
G30     269.8          10.9              -13.5 +/-   20.55     -36.9 +/-   20.55  0.050 / 0.050