PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/20-21:57:40
G05     52.4           10.0                9.5 +/-    2.99      26.6 +/-    2.99  0.360 / 0.230
G10     242.5          19.5               15.4 +/-    2.26      34.4 +/-    2.26  0.510 / 0.410
G13     64.0           34.3               10.6 +/-    2.10      17.0 +/-    2.10  0.050 / 0.040
G15     114.5          57.3               12.3 +/-    0.27      14.4 +/-    0.27  0.060 / 0.060
G16     304.0          15.7                8.7 +/-    1.59      21.2 +/-    1.59  0.130 / 0.390
G20     246.7          11.7                6.9 +/-    2.62      18.6 +/-    2.62  0.090 / 0.390
G21     321.2          52.3               11.4 +/-    0.65      14.0 +/-    0.65  0.080 / 0.130
G26     276.1          19.2               11.9 +/-    1.17      26.6 +/-    1.17  0.070 / 0.130
G29     161.8          63.0               12.6 +/-    0.41      14.0 +/-    0.41  0.030 / 0.040