PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/07-13:57:50
G02     21.0           64.0                4.9 +/-    1.32       5.4 +/-    1.32  0.030 / 0.050
G05     157.1          50.4                7.4 +/-    0.71       9.3 +/-    0.71  0.030 / 0.050
G06     48.2           22.9                4.9 +/-    0.82      10.0 +/-    0.82  0.290 / 0.390
G12     217.5          77.9                4.1 +/-    0.94       4.2 +/-    0.94  0.320 / 0.470
G19     91.7           14.0                5.7 +/-    1.14      14.5 +/-    1.14  0.080 / 0.130
G24     216.6          10.3                4.5 +/-    6.67      12.5 +/-    6.67  0.070 / 0.110
G25     309.2          44.7                4.3 +/-    1.32       5.9 +/-    1.32  0.060 / 0.080
G29     299.0          19.8                5.9 +/-    1.82      13.1 +/-    1.82  0.050 / 0.070