PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/08-22:58:10
G10     246.6          23.4               13.8 +/-    1.98      28.1 +/-    1.98  0.040 / 0.040
G13     58.2           32.2                9.1 +/-    1.53      15.2 +/-    1.53  0.040 / 0.050
G15     102.4          58.9               12.1 +/-    0.38      13.9 +/-    0.38  0.190 / 0.450
G16     298.9          16.1                9.6 +/-    1.62      23.3 +/-    1.62  0.160 / 0.390
G20     252.1          21.5                6.9 +/-    3.80      14.5 +/-    3.80  0.070 / 0.130
G21     326.8          56.0                9.1 +/-    0.71      10.7 +/-    0.71  0.050 / 0.120
G26     270.9          17.5               11.9 +/-    2.12      27.9 +/-    2.12  0.030 / 0.040
G29     163.8          56.7               11.6 +/-    0.40      13.5 +/-    0.40  0.030 / 0.030