PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/05-14:42:50
G05     52.7           9.9                 5.2 +/-    5.78      14.5 +/-    5.78  0.080 / 0.330
G10     243.6          21.0                7.7 +/-    3.50      16.4 +/-    3.50  0.080 / 0.320
G13     62.1           33.5                8.1 +/-    1.23      13.3 +/-    1.23  0.030 / 0.040
G15     107.5          57.6                8.0 +/-    0.54       9.3 +/-    0.54  0.030 / 0.040
G16     305.4          14.5               -0.3 +/-    2.58      -0.9 +/-    2.58  0.320 / 0.370
G20     259.3          45.1                9.6 +/-    2.88      12.9 +/-    2.88  0.210 / 0.290
G21     327.5          56.3                7.8 +/-    0.60       9.2 +/-    0.60  0.040 / 0.030
G26     278.7          18.0                5.9 +/-    1.29      13.5 +/-    1.29  0.030 / 0.030
G29     160.3          58.5               10.8 +/-    0.61      12.4 +/-    0.61  0.070 / 0.090