PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/08-12:57:50
G10     291.5          49.4                3.3 +/-    3.10       4.2 +/-    3.10  0.050 / 0.070
G15     46.6           30.1                3.2 +/-    0.77       5.6 +/-    0.77  0.050 / 0.090
G20     66.7           25.1                3.6 +/-    1.86       7.1 +/-    1.86  0.050 / 0.040
G21     89.5           73.9                4.3 +/-    0.48       4.4 +/-    0.48  0.040 / 0.040
G24     102.4          25.0                5.8 +/-    1.14      11.4 +/-    1.14  0.080 / 0.130
G27     303.4          33.1                1.8 +/-    1.72       3.0 +/-    1.72  0.080 / 0.110
G32     209.2          28.8                4.3 +/-    1.74       7.7 +/-    1.74  0.080 / 0.120