PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/16-19:57:40
G10     297.2          51.9               10.7 +/-    1.32      13.2 +/-    1.32  0.060 / 0.100
G14     210.1          11.3                4.1 +/-   33.56      11.0 +/-   33.56  0.050 / 0.100
G15     46.7           32.0                8.3 +/-    1.35      14.0 +/-    1.35  0.040 / 0.050
G20     351.7          65.4                8.5 +/-    1.32       9.2 +/-    1.32  0.040 / 0.040
G21     96.7           73.6               11.7 +/-    1.13      12.1 +/-    1.13  0.390 / 0.650
G24     94.4           26.0               12.9 +/-    1.42      24.7 +/-    1.42  0.130 / 0.350
G27     302.2          33.1               11.5 +/-    1.24      19.0 +/-    1.24  0.040 / 0.070
G32     210.2          32.2               11.0 +/-    1.07      18.4 +/-    1.07  0.040 / 0.080