PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/25-03:57:50
G08     268.5          18.8               11.8 +/-   32.38      26.8 +/-   32.38  0.110 / 0.300
G10     58.4           58.9               16.3 +/-   35.60      18.7 +/-   35.60  0.110 / 0.230
G11     312.4          16.4               -8.6 +/-   11.72     -20.7 +/-   11.72  0.040 / 0.060
G14     260.9          63.4               16.0 +/-   34.75      17.7 +/-   34.75  0.050 / 0.060
G18     313.2          30.3               13.7 +/-   35.58      23.9 +/-   35.58  0.130 / 0.390
G20     79.3           55.4               18.2 +/-   34.84      21.6 +/-   34.84  0.130 / 0.280
G21     154.7          17.8                5.4 +/-    5.94      12.6 +/-    5.94  0.030 / 0.040
G27     233.1          17.0                8.8 +/-    4.75      20.8 +/-    4.75  0.030 / 0.030
G31     177.0          30.5                7.3 +/-    8.10      12.7 +/-    8.10  0.110 / 0.330
G32     340.9          74.5               16.8 +/-   35.11      17.3 +/-   35.11  0.070 / 0.230