PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/08-00:42:50
G05     49.9           14.4                8.5 +/-    3.15      21.4 +/-    3.15  0.100 / 0.320
G10     237.9          14.4               12.2 +/-    1.31      30.7 +/-    1.31  0.120 / 0.360
G13     72.3           36.1               12.7 +/-    0.74      19.8 +/-    0.74  0.090 / 0.250
G15     123.3          53.8               14.4 +/-    0.72      17.3 +/-    0.72  0.140 / 0.220
G16     310.7          14.0                9.0 +/-    2.01      22.9 +/-    2.01  0.040 / 0.050
G20     247.5          29.8               11.6 +/-    0.89      20.4 +/-    0.89  0.040 / 0.050
G21     314.9          48.0               11.3 +/-    0.98      14.6 +/-    0.98  0.050 / 0.090
G26     283.1          20.6               11.3 +/-    3.16      24.4 +/-    3.16  0.060 / 0.100
G29     158.3          70.5               12.5 +/-    0.51      13.1 +/-    0.51  0.030 / 0.040