PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/10-15:42:50
G10     251.6          26.8                8.2 +/-    1.82      15.3 +/-    1.82  0.070 / 0.040
G13     53.3           30.3                6.2 +/-    1.44      10.7 +/-    1.44  0.060 / 0.050
G15     81.7           56.2                8.4 +/-    1.13       9.8 +/-    1.13  0.130 / 0.280
G16     298.9          13.7                4.2 +/-    2.25      10.9 +/-    2.25  0.160 / 0.260
G18     273.1          58.4                9.2 +/-    1.49      10.6 +/-    1.49  0.110 / 0.120
G20     41.6           50.0                6.1 +/-    0.97       7.7 +/-    0.97  0.080 / 0.130
G21     344.2          64.7                7.8 +/-    0.32       8.5 +/-    0.32  0.050 / 0.030
G26     269.3          14.9                6.3 +/-    1.59      15.8 +/-    1.59  0.060 / 0.040
G29     163.0          44.0                9.8 +/-    0.59      13.4 +/-    0.59  0.100 / 0.440