PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/10-07:13:00
G08     320.4          10.8               -7.7 +/-   30.31     -21.0 +/-   30.31  0.240 / 0.310
G10     310.5          55.6                4.9 +/-    0.43       5.8 +/-    0.43  0.170 / 0.250
G14     213.6          15.6                9.6 +/-    2.73      23.5 +/-    2.73  0.050 / 0.090
G15     45.6           20.5                2.9 +/-    0.49       6.2 +/-    0.49  0.050 / 0.080
G20     53.7           49.0                5.4 +/-    0.63       6.9 +/-    0.63  0.030 / 0.040
G21     117.8          68.1                7.4 +/-    1.00       7.9 +/-    1.00  0.040 / 0.050
G24     87.7           29.1                6.1 +/-    0.43      10.9 +/-    0.43  0.070 / 0.120
G27     289.8          37.2                6.2 +/-    1.26       9.4 +/-    1.26  0.080 / 0.090
G32     214.6          42.3                8.3 +/-    1.00      11.7 +/-    1.00  0.030 / 0.040