PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/26-01:12:40
G10     253.6          28.2               11.3 +/-    2.10      20.6 +/-    2.10  0.070 / 0.330
G13     51.4           29.2                9.4 +/-    1.49      16.8 +/-    1.49  0.080 / 0.280
G15     83.7           58.1               12.5 +/-    0.45      14.4 +/-    0.45  0.090 / 0.390
G16     293.6          14.4                6.8 +/-    2.49      17.2 +/-    2.49  0.110 / 0.440
G18     273.1          56.8                8.9 +/-    1.36      10.4 +/-    1.36  0.060 / 0.120
G20     46.1           44.1                9.3 +/-    0.85      12.7 +/-    0.85  0.080 / 0.120
G21     337.6          62.6                8.4 +/-    0.44       9.3 +/-    0.44  0.030 / 0.040
G26     266.0          14.1                9.9 +/-    4.09      25.2 +/-    4.09  0.030 / 0.030
G29     165.2          44.0               12.9 +/-    0.86      17.6 +/-    0.86  0.040 / 0.050