PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/18-15:57:30
G10     245.5          22.7                8.7 +/-    1.98      18.0 +/-    1.98  0.030 / 0.040
G13     59.5           32.6                7.0 +/-    1.04      11.6 +/-    1.04  0.030 / 0.040
G15     103.7          58.4                8.9 +/-    0.38      10.3 +/-    0.38  0.100 / 0.380
G16     302.6          15.0                4.4 +/-    1.76      10.9 +/-    1.76  0.090 / 0.390
G20     262.0          46.7                9.9 +/-    4.33      13.0 +/-    4.33  0.030 / 0.040
G21     329.3          57.3                7.2 +/-    0.54       8.4 +/-    0.54  0.040 / 0.040
G26     275.6          17.4                6.6 +/-    3.67      15.6 +/-    3.67  0.060 / 0.140
G29     161.7          56.3                9.9 +/-    0.77      11.7 +/-    0.77  0.060 / 0.090