PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/18-20:12:40
G08     316.4          15.2                6.4 +/-    2.02      15.9 +/-    2.02  0.050 / 0.070
G10     313.8          56.6                8.7 +/-    1.41      10.2 +/-    1.41  0.050 / 0.080
G14     213.3          20.9                9.3 +/-    2.42      20.1 +/-    2.42  0.040 / 0.050
G15     45.8           22.6                6.3 +/-    0.80      12.9 +/-    0.80  0.040 / 0.040
G20     16.3           63.8                7.0 +/-    0.66       7.7 +/-    0.66  0.090 / 0.240
G21     121.0          65.7                9.8 +/-    0.49      10.6 +/-    0.49  0.080 / 0.220
G24     82.5           28.5                8.5 +/-    0.80      15.4 +/-    0.80  0.140 / 0.450
G27     290.2          36.6                8.1 +/-    1.31      12.4 +/-    1.31  0.160 / 0.410
G32     215.5          42.6                9.4 +/-    1.18      13.1 +/-    1.18  0.060 / 0.130