PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/10-09:43:00
G08     312.8          16.1                4.5 +/-    1.75      10.9 +/-    1.75  0.180 / 0.140
G10     332.2          60.0                5.1 +/-    0.32       5.8 +/-    0.32  0.250 / 0.210
G14     218.7          28.0                7.0 +/-    2.07      12.8 +/-    2.07  0.050 / 0.060
G20     77.2           26.4                3.6 +/-    1.89       6.8 +/-    1.89  0.050 / 0.080
G21     134.7          56.2                8.7 +/-    0.35      10.2 +/-    0.35  0.080 / 0.160
G24     73.7           30.1                6.6 +/-    1.11      11.5 +/-    1.11  0.110 / 0.180
G27     273.5          37.4                7.2 +/-    2.27      10.9 +/-    2.27  0.040 / 0.040
G32     223.8          54.3                9.2 +/-    2.27      11.1 +/-    2.27  0.030 / 0.040