PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/30-14:43:10
G02     28.9           58.1                6.8 +/-    0.80       7.9 +/-    0.80  0.030 / 0.030
G05     149.0          58.4                8.4 +/-    0.40       9.7 +/-    0.40  0.020 / 0.020
G06     52.0           16.9                6.0 +/-    1.93      14.4 +/-    1.93  0.080 / 0.170
G12     198.8          70.6                7.1 +/-    0.63       7.5 +/-    0.63  0.080 / 0.170
G19     98.0           9.4                 8.6 +/-    2.15      24.3 +/-    2.15  0.180 / 0.290
G25     301.5          50.7                6.1 +/-    3.49       7.6 +/-    3.49  0.150 / 0.360
G29     304.6          25.2                6.4 +/-    0.66      12.5 +/-    0.66  0.030 / 0.050