PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/31-22:12:40
G10     266.6          38.1               12.8 +/-    1.06      19.3 +/-    1.06  0.140 / 0.140
G13     42.0           18.4                9.1 +/-    2.81      20.9 +/-    2.81  0.170 / 0.160
G15     62.9           52.7               10.7 +/-    0.66      13.0 +/-    0.66  0.050 / 0.040
G16     277.5          12.6               11.7 +/-    2.34      30.9 +/-    2.34  0.040 / 0.040
G20     265.2          24.2               16.3 +/-    0.89      32.4 +/-    0.89  0.130 / 0.280
G21     358.4          71.0               10.0 +/-    0.91      10.5 +/-    0.91  0.130 / 0.300
G24     118.9          14.2               14.8 +/-    1.52      37.7 +/-    1.52  0.160 / 0.360
G27     319.0          18.2                9.1 +/-    1.22      21.0 +/-    1.22  0.200 / 0.430
G29     168.3          32.9               13.0 +/-    1.49      21.5 +/-    1.49  0.120 / 0.210