PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/19-02:28:00
G01     269.9          41.0                7.7 +/-    0.88      11.1 +/-    0.88  0.040 / 0.050
G03     315.8          28.9                3.6 +/-    2.45       6.4 +/-    2.45  0.040 / 0.050
G10     130.1          16.0                7.4 +/-    1.08      17.9 +/-    1.08  0.080 / 0.090
G11     248.8          19.6                7.1 +/-    1.19      15.8 +/-    1.19  0.060 / 0.080
G14     43.3           50.2                4.7 +/-    1.01       5.9 +/-    1.01  0.040 / 0.070
G18     232.1          38.4                9.4 +/-    1.12      14.1 +/-    1.12  0.040 / 0.070
G22     313.9          51.6                6.7 +/-    1.28       8.3 +/-    1.28  0.110 / 0.350
G25     50.0           15.2                4.2 +/-    1.07      10.4 +/-    1.07  0.130 / 0.310
G31     53.8           72.6                5.8 +/-    0.61       6.0 +/-    0.61  0.090 / 0.230
G32     65.3           31.1                5.0 +/-    0.74       8.6 +/-    0.74  0.090 / 0.230