PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/08-10:57:50
G05     50.2           13.3                2.2 +/-    1.13       5.6 +/-    1.13  0.100 / 0.170
G10     238.2          14.2                2.0 +/-    1.81       5.0 +/-    1.81  0.080 / 0.190
G13     72.7           36.6                5.6 +/-    0.73       8.7 +/-    0.73  0.040 / 0.060
G15     116.2          54.1                6.9 +/-    0.89       8.3 +/-    0.89  0.050 / 0.050
G16     313.0          12.4                1.8 +/-    3.00       4.9 +/-    3.00  0.160 / 0.280
G20     22.2           68.4                5.1 +/-    0.77       5.4 +/-    0.77  0.200 / 0.300
G21     318.3          51.1                3.5 +/-    0.74       4.3 +/-    0.74  0.040 / 0.040
G26     284.6          20.0                2.1 +/-    1.57       4.7 +/-    1.57  0.040 / 0.040
G29     156.7          66.7                7.0 +/-    0.27       7.5 +/-    0.27  0.040 / 0.070