PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/19-14:58:10
G08     315.8          15.0                1.2 +/-    3.10       2.9 +/-    3.10  0.050 / 0.080
G10     318.8          57.4                3.6 +/-    0.71       4.1 +/-    0.71  0.070 / 0.050
G14     215.2          24.0                7.5 +/-    2.07      15.0 +/-    2.07  0.100 / 0.080
G15     45.8           14.7                4.2 +/-    1.47      10.5 +/-    1.47  0.060 / 0.080
G18     31.7           60.8                5.4 +/-    0.66       6.0 +/-    0.66  0.190 / 0.340
G20     80.0           12.9                6.4 +/-    2.49      16.8 +/-    2.49  0.180 / 0.230
G21     127.2          59.5                6.2 +/-    0.33       7.0 +/-    0.33  0.040 / 0.040
G24     82.8           30.2                6.4 +/-    1.12      11.2 +/-    1.12  0.030 / 0.030
G27     282.1          38.0                6.6 +/-    1.02      10.0 +/-    1.02  0.070 / 0.070
G32     218.3          45.8                6.8 +/-    0.96       9.1 +/-    0.96  0.040 / 0.040