PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/09-15:58:00
G02     48.5           42.7                9.7 +/-    0.61      13.6 +/-    0.61  0.050 / 0.040
G05     92.8           71.2               10.2 +/-    0.49      10.7 +/-    0.49  0.040 / 0.050
G12     185.3          43.4               11.8 +/-    1.74      16.2 +/-    1.74  0.140 / 0.440
G21     262.8          10.7                1.0 +/-   20.98       2.8 +/-   20.98  0.120 / 0.520
G25     250.9          58.2                9.6 +/-    0.51      11.0 +/-    0.51  0.050 / 0.060
G29     320.9          43.9                8.9 +/-    0.75      12.2 +/-    0.75  0.050 / 0.070