PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/26-14:58:10
G10     292.1          50.3                6.4 +/-    4.03       8.1 +/-    4.03  0.040 / 0.030
G15     47.1           32.5                4.5 +/-    1.10       7.5 +/-    1.10  0.030 / 0.030
G20     343.0          65.4                6.1 +/-    1.04       6.7 +/-    1.04  0.170 / 0.120
G21     91.2           73.0                6.5 +/-    0.70       6.7 +/-    0.70  0.100 / 0.140
G24     97.5           24.6                9.5 +/-    1.76      18.7 +/-    1.76  0.090 / 0.130
G27     306.8          30.4                5.5 +/-    1.60       9.5 +/-    1.60  0.080 / 0.150
G32     209.2          26.8                5.8 +/-    2.03      10.9 +/-    2.03  0.050 / 0.130