PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/09-01:27:50
G02     28.1           59.8               10.6 +/-    1.13      12.1 +/-    1.13  0.030 / 0.020
G05     145.8          57.0               11.8 +/-    0.45      13.8 +/-    0.45  0.030 / 0.030
G06     50.6           20.3                9.0 +/-    2.41      19.7 +/-    2.41  0.020 / 0.040
G12     210.5          74.3               10.8 +/-    0.82      11.2 +/-    0.82  0.030 / 0.070
G19     94.5           14.8               11.0 +/-    2.43      27.6 +/-    2.43  0.080 / 0.080
G25     305.6          48.2                9.6 +/-    3.12      12.3 +/-    3.12  0.090 / 0.120
G29     302.5          22.7                8.1 +/-    1.13      16.8 +/-    1.13  0.050 / 0.150