PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/10-12:58:10
G10     297.3          51.5                3.2 +/-    2.68       4.0 +/-    2.68  0.060 / 0.100
G14     210.7          11.0               -6.2 +/-   12.06     -17.0 +/-   12.06  0.110 / 0.080
G15     45.8           26.4                1.7 +/-    1.96       3.1 +/-    1.96  0.030 / 0.040
G20     69.7           22.4                2.3 +/-    2.02       4.7 +/-    2.02  0.040 / 0.040
G21     101.9          71.6                3.3 +/-    0.96       3.5 +/-    0.96  0.080 / 0.170
G24     98.0           26.7                2.5 +/-    0.91       4.8 +/-    0.91  0.080 / 0.150
G27     299.0          35.0                4.2 +/-    1.26       6.7 +/-    1.26  0.230 / 0.660
G32     210.8          32.9                4.6 +/-    1.97       7.6 +/-    1.97  0.130 / 0.080