PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/15-15:57:50
G08     321.2          10.7              -10.9 +/-   30.95     -30.0 +/-   30.95  0.030 / 0.050
G10     301.3          53.3                6.1 +/-    1.21       7.4 +/-    1.21  0.030 / 0.040
G14     210.5          14.3                8.5 +/-    2.07      21.4 +/-    2.07  0.030 / 0.040
G15     46.0           27.3                4.1 +/-    1.88       7.6 +/-    1.88  0.040 / 0.040
G20     358.3          65.2                6.6 +/-    1.04       7.2 +/-    1.04  0.150 / 0.550
G21     107.4          69.5                6.7 +/-    0.98       7.2 +/-    0.98  0.210 / 0.610
G24     90.3           26.6                8.0 +/-    0.83      15.0 +/-    0.83  0.110 / 0.150
G27     300.4          33.6                6.7 +/-    1.43      11.0 +/-    1.43  0.100 / 0.160
G32     211.6          33.3                7.6 +/-    2.23      12.4 +/-    2.23  0.080 / 0.090