PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/02-22:57:50
G10     296.7          51.7                9.8 +/-    1.08      12.1 +/-    1.08  0.060 / 0.100
G15     46.8           32.6                6.6 +/-    1.34      10.9 +/-    1.34  0.060 / 0.070
G20     286.6          38.3                4.4 +/-    1.58       6.5 +/-    1.58  0.040 / 0.050
G21     91.5           75.5               10.2 +/-    0.83      10.5 +/-    0.83  0.040 / 0.040
G24     96.1           26.1               10.4 +/-    0.58      19.9 +/-    0.58  0.080 / 0.150
G27     301.4          33.8                9.7 +/-    0.67      15.8 +/-    0.67  0.080 / 0.130
G32     209.9          33.2               13.1 +/-    1.34      21.5 +/-    1.34  0.050 / 0.090