PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/16-03:43:10
G08     292.7          22.9                8.9 +/-    0.92      18.2 +/-    0.92  0.120 / 0.110
G10     9.1            63.0                7.9 +/-    0.44       8.7 +/-    0.44  0.120 / 0.140
G14     230.2          44.6               12.7 +/-    0.67      17.2 +/-    0.67  0.060 / 0.110
G20     45.1           62.1                8.7 +/-    0.36       9.7 +/-    0.36  0.070 / 0.090
G21     147.1          40.6               10.7 +/-    0.96      15.4 +/-    0.96  0.040 / 0.030
G24     54.5           24.5                6.1 +/-    0.94      12.1 +/-    0.94  0.040 / 0.030
G27     253.7          31.3               12.3 +/-    0.89      21.0 +/-    0.89  0.040 / 0.100
G32     249.5          70.3                9.8 +/-    0.82      10.4 +/-    0.82  0.040 / 0.070