PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/19-14:28:10
G10     297.2          51.5                3.7 +/-    2.60       4.5 +/-    2.60  0.060 / 0.060
G14     210.5          11.5               -4.7 +/-   14.31     -12.7 +/-   14.31  0.100 / 0.070
G15     45.8           26.4                3.4 +/-    2.21       6.4 +/-    2.21  0.100 / 0.110
G18     5.2            65.5                4.2 +/-    0.38       4.5 +/-    0.38  0.080 / 0.120
G20     70.1           21.5                4.5 +/-    1.22       9.5 +/-    1.22  0.070 / 0.150
G21     103.3          70.6                4.5 +/-    0.74       4.8 +/-    0.74  0.060 / 0.150
G24     98.2           26.7                6.7 +/-    0.96      12.6 +/-    0.96  0.030 / 0.030
G27     298.9          35.1                3.6 +/-    1.00       5.7 +/-    1.00  0.030 / 0.030
G32     210.9          32.4                4.6 +/-    2.29       7.6 +/-    2.29  0.100 / 0.150