PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/27-18:12:50
G02     54.7           37.3                8.4 +/-    1.98      12.7 +/-    1.98  0.100 / 0.410
G05     65.2           65.1                8.4 +/-    0.30       9.1 +/-    0.30  0.130 / 0.430
G12     184.8          36.9               10.9 +/-    1.62      16.7 +/-    1.62  0.180 / 0.370
G13     129.5          12.5               13.6 +/-    5.94      35.9 +/-    5.94  0.220 / 0.380
G21     268.4          14.2                9.5 +/-    4.44      24.2 +/-    4.44  0.050 / 0.060
G25     244.1          54.4                8.9 +/-    1.57      10.7 +/-    1.57  0.050 / 0.090
G29     326.2          50.9                8.2 +/-    0.87      10.2 +/-    0.87  0.060 / 0.080