PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/27-22:28:00
G10     301.3          53.7               10.2 +/-    1.41      12.4 +/-    1.41  0.040 / 0.040
G14     210.5          11.3                0.2 +/-   32.89       0.6 +/-   32.89  0.040 / 0.040
G15     46.0           27.3                7.4 +/-    1.86      13.7 +/-    1.86  0.240 / 0.500
G20     357.3          65.1               10.2 +/-    0.73      11.1 +/-    0.73  0.130 / 0.530
G21     98.8           74.0               11.7 +/-    0.74      12.1 +/-    0.74  0.070 / 0.100
G24     97.4           27.2               11.7 +/-    1.41      21.7 +/-    1.41  0.150 / 0.160
G27     299.5          34.8               10.2 +/-    1.29      16.3 +/-    1.29  0.080 / 0.140
G32     210.7          33.3               16.4 +/-    1.28      27.0 +/-    1.28  0.100 / 0.090