PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/14-17:12:30
G08     294.6          23.7                7.1 +/-    1.38      14.3 +/-    1.38  0.050 / 0.090
G10     1.9            62.8                6.2 +/-    0.38       6.9 +/-    0.38  0.040 / 0.080
G14     227.0          44.2               10.4 +/-    0.79      14.2 +/-    0.79  0.040 / 0.030
G20     60.9           53.8                6.4 +/-    0.42       7.7 +/-    0.42  0.030 / 0.030
G21     144.4          40.3                8.9 +/-    1.04      12.9 +/-    1.04  0.070 / 0.090
G24     55.4           23.9                5.7 +/-    1.30      11.4 +/-    1.30  0.080 / 0.110
G27     260.8          33.2                8.1 +/-    1.03      13.4 +/-    1.03  0.060 / 0.100
G32     239.3          64.2                8.5 +/-    0.69       9.3 +/-    0.69  0.060 / 0.100