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              -12.4 +/-   24.37     -34.1 +/-   24.37  0.030 / 0.030
G10     301.3          53.3                5.6 +/-    1.01       6.8 +/-    1.01  0.030 / 0.030
G14     210.5          14.3                6.9 +/-    2.28      17.4 +/-    2.28  0.070 / 0.040
G15     46.0           27.3                4.0 +/-    1.77       7.5 +/-    1.77  0.040 / 0.050
G20     358.3          65.2                5.8 +/-    0.68       6.4 +/-    0.68  0.120 / 0.120
G21     107.4          69.5                7.4 +/-    0.34       7.9 +/-    0.34  0.100 / 0.110
G24     90.3           26.6                6.8 +/-    1.46      12.9 +/-    1.46  0.290 / 0.410
G27     300.4          33.6                5.0 +/-    1.14       8.1 +/-    1.14  0.160 / 0.450
G32     211.6          33.3                7.1 +/-    2.29      11.7 +/-    2.29  0.060 / 0.080