PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/19-12:28:00
G02     345.3          78.0                2.2 +/-    0.72       2.2 +/-    0.72  0.070 / 0.080
G05     167.5          31.2                4.7 +/-    0.78       8.0 +/-    0.78  0.060 / 0.090
G06     41.4           38.8                1.9 +/-    0.69       2.8 +/-    0.69  0.030 / 0.030
G12     310.3          73.8                2.2 +/-    0.42       2.3 +/-    0.42  0.030 / 0.040
G17     85.4           11.7                4.6 +/-    2.25      12.3 +/-    2.25  0.090 / 0.140
G19     75.8           25.0                4.0 +/-    0.63       7.9 +/-    0.63  0.120 / 0.150
G24     229.6          22.7                6.2 +/-    1.64      12.7 +/-    1.64  0.150 / 0.220
G25     316.9          28.3                0.7 +/-    1.09       1.3 +/-    1.09  0.100 / 0.210