PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/17-00:12:50
G10     266.6          37.2               12.1 +/-    1.00      18.5 +/-    1.00  0.150 / 0.350
G13     42.6           19.9                8.7 +/-    1.52      19.1 +/-    1.52  0.180 / 0.350
G15     60.7           50.3               10.8 +/-    0.46      13.5 +/-    0.46  0.070 / 0.090
G16     281.4          11.5               11.3 +/-    1.57      30.6 +/-    1.57  0.070 / 0.070
G18     298.7          63.8               10.3 +/-    0.67      11.3 +/-    0.67  0.040 / 0.040
G20     55.0           33.8                7.9 +/-    0.92      12.7 +/-    0.92  0.040 / 0.050
G21     3.2            72.0               11.6 +/-    0.87      12.2 +/-    0.87  0.150 / 0.270
G24     121.6          13.8               14.1 +/-    2.09      36.0 +/-    2.09  0.140 / 0.200
G27     317.8          20.2                9.0 +/-    2.54      19.7 +/-    2.54  0.060 / 0.100
G29     167.0          28.7               12.8 +/-    1.09      23.0 +/-    1.09  0.040 / 0.100