PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/14-14:43:00
G05     49.3           16.2                4.3 +/-    2.74      10.3 +/-    2.74  0.150 / 0.230
G10     237.0          12.6                6.3 +/-    1.43      16.5 +/-    1.43  0.090 / 0.130
G13     75.5           37.1                6.3 +/-    1.29       9.6 +/-    1.29  0.030 / 0.030
G15     119.7          53.0                7.9 +/-    0.49       9.6 +/-    0.49  0.040 / 0.030
G16     316.7          10.4               -5.7 +/-    4.86     -15.8 +/-    4.86  0.130 / 0.380
G18     247.5          45.0                7.2 +/-    1.77       9.7 +/-    1.77  0.040 / 0.060
G20     24.6           67.9                5.8 +/-    0.72       6.2 +/-    0.72  0.050 / 0.060
G26     288.6          19.6                5.2 +/-    0.76      11.6 +/-    0.76  0.090 / 0.140
G29     153.9          66.3                8.3 +/-    0.43       9.0 +/-    0.43  0.090 / 0.210