PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/24-16:57:40
G02     202.5          27.2                8.8 +/-    1.97      16.4 +/-    1.97  0.080 / 0.150
G06     162.0          64.6                9.0 +/-    0.69       9.8 +/-    0.69  0.070 / 0.150
G12     305.5          14.3                8.4 +/-    1.41      21.1 +/-    1.41  0.120 / 0.250
G17     31.0           53.1                9.0 +/-    0.62      11.0 +/-    0.62  0.080 / 0.230
G19     338.8          68.8                8.4 +/-    0.44       8.9 +/-    0.44  0.030 / 0.030
G24     302.4          36.1                9.0 +/-    1.41      14.0 +/-    1.41  0.030 / 0.030
G28     96.9           34.8                9.7 +/-    1.39      15.5 +/-    1.39  0.030 / 0.050