PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/23-00:12:50
G01     320.0          15.4                1.2 +/-   18.00       3.0 +/-   18.00  0.170 / 0.350
G08     258.6          14.7                7.2 +/-    2.18      18.0 +/-    2.18  0.140 / 0.410
G10     75.2           54.5                6.7 +/-    0.40       8.0 +/-    0.40  0.180 / 0.500
G11     305.0          22.2                3.7 +/-    2.34       7.7 +/-    2.34  0.190 / 0.340
G14     286.0          69.5                6.0 +/-    0.68       6.4 +/-    0.68  0.040 / 0.060
G18     306.6          39.1                4.4 +/-    0.85       6.5 +/-    0.85  0.040 / 0.060
G20     102.7          31.3                8.0 +/-    0.76      13.7 +/-    0.76  0.140 / 0.310
G27     227.1          11.0                7.9 +/-    2.28      21.6 +/-    2.28  0.130 / 0.310
G31     176.3          39.1               10.1 +/-    0.98      14.9 +/-    0.98  0.070 / 0.190
G32     3.9            69.0                6.6 +/-    0.44       7.0 +/-    0.44  0.090 / 0.230