PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/14-16:12:40
G08     318.2          13.8                4.2 +/-    2.24      10.7 +/-    2.24  0.030 / 0.040
G10     309.1          55.5                4.3 +/-    0.73       5.1 +/-    0.73  0.030 / 0.050
G14     212.0          18.8                7.6 +/-    2.13      17.1 +/-    2.13  0.040 / 0.040
G15     45.7           22.9                3.4 +/-    0.92       7.0 +/-    0.92  0.040 / 0.040
G20     9.8            64.4                5.5 +/-    0.63       6.0 +/-    0.63  0.090 / 0.120
G21     117.2          65.8                6.0 +/-    0.68       6.5 +/-    0.68  0.080 / 0.110
G24     84.7           27.7                4.5 +/-    0.94       8.2 +/-    0.94  0.170 / 0.450
G27     294.8          35.3                6.7 +/-    1.35      10.6 +/-    1.35  0.140 / 0.520
G32     214.0          38.2                8.3 +/-    1.64      12.4 +/-    1.64  0.110 / 0.230