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                8.1 +/-    0.44      11.3 +/-    0.44  0.020 / 0.040
G05     92.7           68.9                8.8 +/-    0.34       9.4 +/-    0.34  0.030 / 0.040
G12     187.1          48.5               11.9 +/-    2.12      15.3 +/-    2.12  0.040 / 0.070
G25     266.7          58.2                9.1 +/-    0.69      10.5 +/-    0.69  0.050 / 0.070
G29     317.7          39.7                8.7 +/-    1.55      12.7 +/-    1.55  0.040 / 0.050