PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/18-23:12:50
G10     269.9          40.0                7.7 +/-    1.49      11.2 +/-    1.49  0.220 / 0.250
G13     40.7           16.1                6.4 +/-    2.25      15.5 +/-    2.25  0.240 / 0.210
G15     58.9           50.0                6.8 +/-    0.52       8.6 +/-    0.52  0.040 / 0.040
G16     274.8          11.4                7.1 +/-    5.41      19.2 +/-    5.41  0.050 / 0.040
G20     271.1          32.8                4.6 +/-    0.94       7.7 +/-    0.94  0.170 / 0.350
G21     6.1            73.0                7.5 +/-    0.84       7.8 +/-    0.84  0.170 / 0.330
G24     116.5          15.9                8.1 +/-    0.90      19.8 +/-    0.90  0.140 / 0.230
G27     317.5          20.7                6.3 +/-    2.91      13.5 +/-    2.91  0.130 / 0.240
G29     168.6          29.6                8.2 +/-    1.23      14.5 +/-    1.23  0.100 / 0.360
G32     204.2          13.1                9.0 +/-    3.46      23.4 +/-    3.46  0.150 / 0.390