PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/17-00:13:10
G10     301.0          53.0                7.4 +/-    1.61       9.1 +/-    1.61  0.060 / 0.080
G14     211.0          12.8                5.4 +/-   21.03      14.2 +/-   21.03  0.090 / 0.070
G15     46.2           29.3                5.7 +/-    1.24      10.0 +/-    1.24  0.040 / 0.040
G20     297.5          48.5                6.0 +/-    0.64       7.8 +/-    0.64  0.030 / 0.040
G21     101.5          73.7                8.9 +/-    0.71       9.3 +/-    0.71  0.120 / 0.470
G24     93.2           27.1                7.5 +/-    1.25      14.0 +/-    1.25  0.090 / 0.400
G27     298.1          35.0                8.1 +/-    2.23      12.9 +/-    2.23  0.060 / 0.110
G32     211.2          36.1                9.8 +/-    1.47      15.3 +/-    1.47  0.080 / 0.120