PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/28-21:12:50
G10     298.0          52.1                9.5 +/-    1.27      11.7 +/-    1.27  0.060 / 0.120
G14     210.3          11.5                6.2 +/-   24.32      16.9 +/-   24.32  0.060 / 0.110
G15     46.8           32.4                7.2 +/-    0.97      12.1 +/-    0.97  0.120 / 0.490
G20     353.0          65.4                6.9 +/-    1.12       7.5 +/-    1.12  0.110 / 0.510
G21     97.6           73.7               10.9 +/-    0.66      11.3 +/-    0.66  0.040 / 0.040
G24     94.3           26.3               10.3 +/-    0.84      19.6 +/-    0.84  0.040 / 0.040
G27     301.3          33.6               10.1 +/-    1.55      16.4 +/-    1.55  0.100 / 0.150
G32     210.4          33.1               10.4 +/-    1.81      17.1 +/-    1.81  0.080 / 0.140