PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/15-00:27:50
G08     266.2          18.3                9.2 +/-    1.78      21.0 +/-    1.78  0.130 / 0.360
G10     61.2           58.2               10.3 +/-    0.76      11.9 +/-    0.76  0.150 / 0.550
G11     311.2          17.7                5.0 +/-   11.55      11.6 +/-   11.55  0.040 / 0.040
G14     265.2          65.4               10.6 +/-    0.78      11.6 +/-    0.78  0.040 / 0.050
G18     312.2          32.5                7.3 +/-    0.88      12.2 +/-    0.88  0.210 / 0.270
G20     95.1           36.8               10.3 +/-    1.19      15.8 +/-    1.19  0.200 / 0.240
G21     154.8          15.6               10.9 +/-    3.06      26.7 +/-    3.06  0.030 / 0.030
G27     232.8          16.3               12.5 +/-    3.00      30.1 +/-    3.00  0.030 / 0.030
G31     177.8          30.7               12.9 +/-    1.51      22.3 +/-    1.51  0.120 / 0.200
G32     342.8          74.0               10.1 +/-    0.33      10.5 +/-    0.33  0.090 / 0.160