PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/11-15:12:40
G08     269.5          17.8                6.6 +/-    1.89      15.4 +/-    1.89  0.220 / 0.190
G10     61.0           58.7                5.9 +/-    0.91       6.7 +/-    0.91  0.120 / 0.220
G11     313.0          15.3                3.1 +/-    1.78       7.6 +/-    1.78  0.080 / 0.110
G14     265.7          65.1                7.1 +/-    0.85       7.7 +/-    0.85  0.090 / 0.110
G21     153.9          12.8                7.2 +/-    1.20      18.9 +/-    1.20  0.190 / 0.280
G24     39.9           10.5                7.0 +/-    1.46      19.4 +/-    1.46  0.150 / 0.240
G27     230.7          15.4                8.1 +/-    2.23      19.9 +/-    2.23  0.040 / 0.040
G31     178.0          31.0                9.9 +/-    1.81      17.0 +/-    1.81  0.040 / 0.050
G32     341.8          73.8                6.2 +/-    0.31       6.5 +/-    0.31  0.120 / 0.180