PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/15-22:27:50
G08     262.7          17.0               13.1 +/-    1.65      30.9 +/-    1.65  0.160 / 0.220
G10     67.0           56.8               10.0 +/-    0.36      11.7 +/-    0.36  0.170 / 0.300
G11     308.8          19.7               10.6 +/-    1.10      23.6 +/-    1.10  0.100 / 0.350
G14     273.5          67.8               12.1 +/-    0.76      13.0 +/-    0.76  0.140 / 0.390
G18     310.0          35.7               10.4 +/-    2.43      16.3 +/-    2.43  0.040 / 0.060
G20     98.2           34.6               10.1 +/-    0.87      16.2 +/-    0.87  0.050 / 0.050
G21     155.0          11.9               12.4 +/-    1.12      33.3 +/-    1.12  0.120 / 0.270
G27     230.9          14.3               13.4 +/-    2.30      33.9 +/-    2.30  0.110 / 0.350
G31     178.1          33.0               12.7 +/-    2.29      21.0 +/-    2.29  0.140 / 0.290
G32     350.5          72.4               11.6 +/-    0.60      12.1 +/-    0.60  0.160 / 0.320