PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/19-14:43:10
G08     320.3          11.1               -9.4 +/-   25.51     -25.5 +/-   25.51  0.100 / 0.070
G10     307.5          54.6                3.6 +/-    0.95       4.3 +/-    0.95  0.070 / 0.070
G14     212.6          17.7                5.5 +/-    1.41      12.8 +/-    1.41  0.110 / 0.090
G15     45.4           20.5                4.3 +/-    2.09       9.4 +/-    2.09  0.070 / 0.110
G18     19.3           63.4                4.9 +/-    1.10       5.5 +/-    1.10  0.070 / 0.140
G20     75.1           17.1                6.3 +/-    1.60      15.0 +/-    1.60  0.090 / 0.170
G21     117.4          65.4                5.2 +/-    0.82       5.7 +/-    0.82  0.030 / 0.040
G24     90.7           28.9                6.5 +/-    1.23      11.7 +/-    1.23  0.030 / 0.030
G27     290.9          37.2                5.9 +/-    3.63       8.9 +/-    3.63  0.100 / 0.090
G32     214.2          39.1                6.5 +/-    1.43       9.6 +/-    1.43  0.080 / 0.080