PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/12-04:58:10
G07     330.3          56.9                4.2 +/-    0.65       5.0 +/-    0.65  0.130 / 0.170
G08     102.1          50.7                8.0 +/-    0.49      10.0 +/-    0.49  0.090 / 0.180
G09     195.8          76.6                5.2 +/-    0.34       5.4 +/-    0.34  0.040 / 0.040
G11     147.1          11.1                3.7 +/-   14.94      10.0 +/-   14.94  0.030 / 0.030
G16     45.2           15.1                1.2 +/-    2.35       2.9 +/-    2.35  0.030 / 0.040
G23     154.9          46.2                7.7 +/-    1.08      10.1 +/-    1.08  0.030 / 0.040
G27     57.0           32.3                4.2 +/-    1.00       7.0 +/-    1.00  0.180 / 0.360
G28     235.4          28.0                4.5 +/-    1.55       8.1 +/-    1.55  0.190 / 0.350
G30     299.8          33.4                1.8 +/-    1.25       3.0 +/-    1.25  0.040 / 0.020