PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/06-17:42:50
G02     234.7          71.5                9.5 +/-    0.74      10.0 +/-    0.74  0.160 / 0.180
G05     172.9          14.0               10.9 +/-    2.61      27.9 +/-    2.61  0.140 / 0.170
G06     41.6           58.4                9.1 +/-    0.30      10.5 +/-    0.30  0.150 / 0.140
G12     322.8          54.1                7.9 +/-    0.49       9.5 +/-    0.49  0.140 / 0.120
G17     69.6           22.8                8.0 +/-    1.59      16.4 +/-    1.59  0.040 / 0.040
G19     52.0           42.7                9.7 +/-    1.50      13.5 +/-    1.50  0.040 / 0.040
G24     245.7          35.9               12.2 +/-    1.51      19.0 +/-    1.51  0.350 / 0.340
G25     316.2          11.0               -7.1 +/-   31.13     -19.5 +/-   31.13  0.320 / 0.440