PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/24-14:12:30
G10     300.2          52.5                4.7 +/-    1.06       5.8 +/-    1.06  0.080 / 0.070
G14     211.1          13.2                2.0 +/-    2.14       5.3 +/-    2.14  0.060 / 0.080
G15     45.6           24.6                2.6 +/-    1.06       5.1 +/-    1.06  0.050 / 0.040
G20     71.5           20.4                3.0 +/-    1.10       6.5 +/-    1.10  0.040 / 0.030
G21     107.8          69.4                3.5 +/-    0.69       3.7 +/-    0.69  0.080 / 0.240
G24     96.0           27.4                5.8 +/-    1.53      10.8 +/-    1.53  0.080 / 0.250
G27     296.6          35.8                4.4 +/-    1.09       6.9 +/-    1.09  0.030 / 0.040
G32     211.8          34.5                5.9 +/-    1.21       9.4 +/-    1.21  0.030 / 0.030