PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/19-02:27:50
G01     269.9          41.0                8.1 +/-    1.82      11.6 +/-    1.82  0.070 / 0.080
G03     315.8          28.9                3.3 +/-    2.09       5.9 +/-    2.09  0.050 / 0.070
G10     130.1          16.0                7.5 +/-    2.19      18.1 +/-    2.19  0.050 / 0.060
G11     248.8          19.6                7.1 +/-    3.20      15.8 +/-    3.20  0.040 / 0.040
G14     43.3           50.2                5.5 +/-    0.84       6.9 +/-    0.84  0.040 / 0.060
G18     232.1          38.4                8.8 +/-    1.90      13.1 +/-    1.90  0.040 / 0.040
G22     313.9          51.6                5.8 +/-    0.82       7.1 +/-    0.82  0.120 / 0.320
G25     50.0           15.2                3.0 +/-    2.34       7.4 +/-    2.34  0.100 / 0.290
G31     53.8           72.6                5.8 +/-    0.40       6.0 +/-    0.40  0.100 / 0.190
G32     65.3           31.1                4.5 +/-    0.93       7.6 +/-    0.93  0.080 / 0.210