PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/27-22:27:30
G10     266.0          37.7                9.5 +/-    1.19      14.4 +/-    1.19  0.220 / 0.130
G13     42.3           18.9                8.2 +/-    2.64      18.6 +/-    2.64  0.130 / 0.140
G15     63.6           53.0                8.7 +/-    1.16      10.6 +/-    1.16  0.050 / 0.040
G16     278.1          12.7                8.8 +/-    2.12      23.2 +/-    2.12  0.050 / 0.040
G20     265.6          25.8               14.3 +/-    1.46      27.4 +/-    1.46  0.130 / 0.270
G21     357.2          70.6                9.0 +/-    0.72       9.5 +/-    0.72  0.130 / 0.320
G24     119.5          13.8               10.6 +/-    1.83      27.1 +/-    1.83  0.180 / 0.430
G27     319.2          17.8                8.2 +/-    2.20      18.9 +/-    2.20  0.160 / 0.330
G29     168.3          33.5               10.1 +/-    1.45      16.6 +/-    1.45  0.140 / 0.430