PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/15-00:58:10
G01     318.1          20.3                6.4 +/-    1.50      14.0 +/-    1.50  0.180 / 0.250
G08     253.6          11.7               11.6 +/-    2.01      31.1 +/-    2.01  0.150 / 0.320
G10     84.4           51.2                8.4 +/-    1.22      10.5 +/-    1.22  0.030 / 0.040
G11     299.6          24.9                8.3 +/-    0.98      16.3 +/-    0.98  0.040 / 0.040
G14     303.9          70.8                8.6 +/-    0.59       9.0 +/-    0.59  0.160 / 0.280
G18     301.0          43.2                8.7 +/-    3.45      12.1 +/-    3.45  0.220 / 0.340
G20     107.8          27.0                9.2 +/-    1.30      17.1 +/-    1.30  0.040 / 0.040
G22     302.1          11.9                3.5 +/-    6.46       9.2 +/-    6.46  0.040 / 0.040
G31     174.6          45.9               10.4 +/-    1.11      13.9 +/-    1.11  0.220 / 0.330
G32     15.3           64.6                7.8 +/-    0.55       8.6 +/-    0.55  0.210 / 0.310