PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/09-07:42:50
G02     216.5          63.8                8.9 +/-    1.08       9.8 +/-    1.08  0.060 / 0.070
G06     55.5           73.3                7.7 +/-    0.42       8.0 +/-    0.42  0.080 / 0.080
G12     318.9          38.9                4.0 +/-    1.71       5.9 +/-    1.71  0.060 / 0.080
G17     58.1           30.9                5.8 +/-    2.68      10.0 +/-    2.68  0.050 / 0.070
G19     42.2           46.7                7.0 +/-    1.18       9.2 +/-    1.18  0.050 / 0.070
G24     265.6          40.7                6.3 +/-    1.89       9.1 +/-    1.89  0.050 / 0.070
G28     120.7          20.9                8.1 +/-    0.92      17.4 +/-    0.92  0.090 / 0.270