PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/08-14:27:50
G05     52.2           10.8                6.0 +/-    1.99      16.5 +/-    1.99  0.110 / 0.150
G10     242.7          20.2                5.8 +/-    1.27      12.8 +/-    1.27  0.090 / 0.140
G13     63.5           34.0                9.8 +/-    0.78      15.8 +/-    0.78  0.040 / 0.060
G15     109.7          57.2                9.7 +/-    0.53      11.3 +/-    0.53  0.040 / 0.060
G16     306.6          14.3                1.9 +/-    1.68       4.9 +/-    1.68  0.140 / 0.280
G20     257.9          44.2                7.5 +/-    0.88      10.2 +/-    0.88  0.140 / 0.300
G21     326.3          55.6                6.4 +/-    0.68       7.6 +/-    0.68  0.070 / 0.110
G26     280.0          18.2                3.5 +/-    1.63       8.1 +/-    1.63  0.070 / 0.120
G29     159.6          59.8               11.2 +/-    0.60      12.7 +/-    0.60  0.030 / 0.030