PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/05-07:12:20
G02     37.0           51.8                3.5 +/-    0.32       4.3 +/-    0.32  0.100 / 0.180
G05     131.6          65.0                6.9 +/-    0.97       7.5 +/-    0.97  0.120 / 0.190
G06     54.2           16.9                2.1 +/-    0.96       5.0 +/-    0.96  0.040 / 0.030
G12     198.7          65.6                3.7 +/-    0.53       4.0 +/-    0.53  0.030 / 0.040
G25     286.2          58.3                4.1 +/-    0.92       4.7 +/-    0.92  0.030 / 0.050
G29     311.7          33.9                2.7 +/-    1.25       4.4 +/-    1.25  0.040 / 0.050