PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/17-17:43:00
G10     294.7          51.1                9.2 +/-    2.03      11.4 +/-    2.03  0.040 / 0.030
G15     46.9           32.2                7.4 +/-    1.35      12.4 +/-    1.35  0.040 / 0.050
G20     347.5          65.4                8.8 +/-    0.33       9.6 +/-    0.33  0.090 / 0.150
G21     93.4           73.6                9.0 +/-    0.92       9.4 +/-    0.92  0.100 / 0.140
G24     95.4           25.3               10.6 +/-    1.82      20.7 +/-    1.82  0.070 / 0.140
G27     304.4          31.9                8.2 +/-    1.59      13.9 +/-    1.59  0.060 / 0.090
G32     209.7          29.8               10.4 +/-    2.54      18.3 +/-    2.54  0.060 / 0.090