PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/06-12:42:50
G03     241.7          71.3                5.6 +/-    0.47       5.8 +/-    0.47  0.050 / 0.030
G09     299.5          13.0                1.0 +/-   13.73       2.6 +/-   13.73  0.030 / 0.030
G14     95.1           17.4                5.9 +/-    2.09      13.9 +/-    2.09  0.040 / 0.050
G16     139.9          52.9                6.2 +/-    1.00       7.6 +/-    1.00  0.040 / 0.050
G22     194.5          58.7                6.0 +/-    0.61       6.9 +/-    0.61  0.040 / 0.050
G23     315.5          45.5                5.3 +/-    1.31       7.0 +/-    1.31  0.040 / 0.040
G26     81.6           54.8                4.5 +/-    0.59       5.4 +/-    0.59  0.100 / 0.260
G31     49.6           23.9                4.4 +/-    2.53       8.9 +/-    2.53  0.120 / 0.260