PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/16-22:57:40
G10     259.1          33.3                8.9 +/-    2.20      14.6 +/-    2.20  0.130 / 0.210
G13     46.1           23.8                7.5 +/-    1.71      15.0 +/-    1.71  0.130 / 0.290
G15     73.5           56.6                8.9 +/-    0.62      10.4 +/-    0.62  0.060 / 0.040
G16     284.7          14.6                7.9 +/-    1.38      19.8 +/-    1.38  0.050 / 0.030
G20     262.3          27.1                5.2 +/-    2.44       9.7 +/-    2.44  0.060 / 0.060
G21     345.0          66.0                9.3 +/-    0.21      10.0 +/-    0.21  0.040 / 0.080
G24     125.1          9.9                -9.7 +/-   34.44     -27.2 +/-   34.44  0.200 / 0.370
G26     257.7          11.5               11.0 +/-    3.01      29.8 +/-    3.01  0.230 / 0.420
G27     321.5          12.4                2.3 +/-   18.11       6.2 +/-   18.11  0.070 / 0.290
G29     167.3          40.7               10.1 +/-    1.40      14.6 +/-    1.40  0.070 / 0.210