PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/30-23:42:30
G10     249.2          25.6               11.9 +/-    1.87      23.0 +/-    1.87  0.040 / 0.050
G13     55.0           30.7                9.1 +/-    0.98      15.8 +/-    0.98  0.040 / 0.050
G15     94.7           59.0               10.8 +/-    0.75      12.4 +/-    0.75  0.130 / 0.300
G16     295.8          16.0                8.7 +/-    1.29      21.0 +/-    1.29  0.140 / 0.350
G20     256.3          28.5                8.1 +/-    3.82      14.7 +/-    3.82  0.080 / 0.120
G21     330.5          58.3                9.3 +/-    0.63      10.7 +/-    0.63  0.090 / 0.150
G26     267.8          16.4               11.6 +/-    1.58      28.0 +/-    1.58  0.030 / 0.040
G29     164.8          53.0               10.2 +/-    0.82      12.4 +/-    0.82  0.030 / 0.040