PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/29-23:43:00
G01     320.2          14.9               -3.1 +/-   28.61      -7.7 +/-   28.61  0.090 / 0.330
G08     259.0          15.0                6.3 +/-    2.94      15.8 +/-    2.94  0.130 / 0.290
G10     74.3           54.7                7.6 +/-    0.19       9.0 +/-    0.19  0.040 / 0.060
G11     305.5          22.0                5.1 +/-    1.71      10.6 +/-    1.71  0.040 / 0.050
G14     284.6          69.4                7.9 +/-    0.78       8.4 +/-    0.78  0.210 / 0.440
G18     307.1          38.8                6.3 +/-    1.19       9.3 +/-    1.19  0.190 / 0.480
G20     102.2          31.7                8.7 +/-    0.93      14.7 +/-    0.93  0.140 / 0.300
G27     227.6          11.4                7.9 +/-    1.76      21.5 +/-    1.76  0.140 / 0.340
G31     176.7          38.2               11.2 +/-    1.53      16.8 +/-    1.53  0.090 / 0.240
G32     2.3            69.5                7.9 +/-    0.62       8.4 +/-    0.62  0.070 / 0.220