PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/24-23:58:00
G08     261.4          16.2                9.5 +/-    2.20      23.0 +/-    2.20  0.220 / 0.350
G10     70.1           56.0                8.6 +/-    0.98      10.1 +/-    0.98  0.190 / 0.380
G11     307.5          20.6                7.1 +/-    3.34      15.5 +/-    3.34  0.040 / 0.060
G14     277.5          68.3                7.3 +/-    0.52       7.8 +/-    0.52  0.030 / 0.050
G18     309.0          36.8                7.7 +/-    2.54      11.9 +/-    2.54  0.100 / 0.310
G20     99.9           33.4                8.8 +/-    0.92      14.5 +/-    0.92  0.100 / 0.220
G21     155.4          10.7                9.2 +/-    3.13      25.2 +/-    3.13  0.150 / 0.520
G27     229.3          13.0                8.4 +/-   13.67      22.0 +/-   13.67  0.170 / 0.390
G31     177.1          35.7               10.7 +/-    0.48      16.8 +/-    0.48  0.030 / 0.040
G32     356.7          71.1                8.2 +/-    0.66       8.6 +/-    0.66  0.030 / 0.030