PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/01-01:43:00
G01     320.0          15.2                0.3 +/-   29.66       0.7 +/-   29.66  0.200 / 0.320
G08     258.2          14.8               10.4 +/-    2.64      26.0 +/-    2.64  0.260 / 0.300
G10     74.8           54.7                8.3 +/-    0.46       9.9 +/-    0.46  0.150 / 0.320
G11     304.9          22.3                7.7 +/-    2.16      15.9 +/-    2.16  0.150 / 0.210
G14     285.6          69.4                8.2 +/-    0.57       8.7 +/-    0.57  0.080 / 0.210
G18     307.2          38.3                7.5 +/-    1.53      11.2 +/-    1.53  0.070 / 0.180
G20     62.5           68.3               30.2 +/-    0.63      32.2 +/-    0.63  0.040 / 0.040
G27     226.5          10.9               12.7 +/-    3.13      34.6 +/-    3.13  0.040 / 0.050
G31     174.8          40.3               10.4 +/-    1.33      15.1 +/-    1.33  0.150 / 0.250
G32     5.7            68.6                7.1 +/-    0.42       7.6 +/-    0.42  0.140 / 0.300