PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/09-00:12:00
G02     47.1           43.3                9.3 +/-    1.40      12.8 +/-    1.40  0.020 / 0.030
G05     92.7           68.9                9.9 +/-    0.69      10.5 +/-    0.69  0.020 / 0.030
G12     187.1          48.5               12.8 +/-    0.50      16.5 +/-    0.50  0.040 / 0.070
G25     266.7          58.2                8.6 +/-    1.48       9.9 +/-    1.48  0.050 / 0.060
G29     317.7          39.7                8.1 +/-    0.77      11.9 +/-    0.77  0.040 / 0.050