PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/23-22:43:00
G10     300.3          53.5               10.4 +/-    1.12      12.6 +/-    1.12  0.040 / 0.040
G14     210.3          10.8               -2.7 +/-   31.34      -7.5 +/-   31.34  0.040 / 0.050
G15     46.0           27.8                6.3 +/-    2.00      11.6 +/-    2.00  0.300 / 0.920
G20     355.6          65.1                9.9 +/-    0.80      10.8 +/-    0.80  0.320 / 0.660
G21     96.8           74.3                9.9 +/-    0.40      10.3 +/-    0.40  0.060 / 0.100
G24     98.1           27.0               10.9 +/-    0.73      20.4 +/-    0.73  0.080 / 0.080
G27     300.2          34.6                9.9 +/-    1.07      15.9 +/-    1.07  0.080 / 0.150
G32     210.5          32.5               10.2 +/-    1.51      17.0 +/-    1.51  0.080 / 0.170