PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/08-03:57:40
G10     265.3          37.1               10.4 +/-    1.22      15.9 +/-    1.22  0.240 / 0.440
G13     42.7           19.6                6.0 +/-    2.71      13.4 +/-    2.71  0.190 / 0.490
G15     61.6           50.6                5.9 +/-    0.75       7.4 +/-    0.75  0.040 / 0.040
G16     279.6          12.7               11.3 +/-    1.95      29.7 +/-    1.95  0.040 / 0.040
G20     308.7          64.9                7.7 +/-    0.52       8.4 +/-    0.52  0.260 / 0.170
G21     357.2          70.5                7.9 +/-    0.54       8.3 +/-    0.54  0.110 / 0.130
G24     121.2          13.3                7.6 +/-    1.78      19.6 +/-    1.78  0.200 / 0.230
G27     319.3          17.7               10.2 +/-    2.25      23.8 +/-    2.25  0.200 / 0.340
G29     168.2          33.6                8.2 +/-    1.25      13.3 +/-    1.25  0.170 / 0.250