PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/24-23:42:50
G05     51.4           11.3                7.1 +/-    2.04      19.2 +/-    2.04  0.400 / 0.230
G10     240.8          17.6               17.4 +/-    2.58      40.6 +/-    2.58  0.360 / 0.260
G13     66.9           35.1               10.5 +/-    1.28      16.5 +/-    1.28  0.050 / 0.070
G15     117.1          56.1               12.2 +/-    0.56      14.4 +/-    0.56  0.040 / 0.050
G16     306.6          15.1                7.2 +/-    1.67      17.8 +/-    1.67  0.100 / 0.340
G20     248.4          23.9                9.6 +/-    2.36      19.2 +/-    2.36  0.100 / 0.280
G21     318.9          50.8                9.8 +/-    0.58      12.3 +/-    0.58  0.060 / 0.110
G26     278.7          19.8               11.7 +/-    2.20      25.8 +/-    2.20  0.060 / 0.100
G29     160.7          65.6               10.5 +/-    0.48      11.4 +/-    0.48  0.030 / 0.030