PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/19-22:57:40
G10     264.7          36.9               11.2 +/-    1.30      17.2 +/-    1.30  0.130 / 0.220
G13     42.9           19.8                7.0 +/-    1.92      15.4 +/-    1.92  0.140 / 0.160
G15     64.9           53.5                7.7 +/-    0.33       9.3 +/-    0.33  0.080 / 0.040
G16     279.4          13.1                9.3 +/-    1.67      24.1 +/-    1.67  0.060 / 0.040
G20     266.4          29.1                5.7 +/-    1.28      10.2 +/-    1.28  0.280 / 0.440
G21     354.7          69.8                9.6 +/-    0.76      10.2 +/-    0.76  0.240 / 0.450
G24     120.6          13.1               10.3 +/-    1.33      26.7 +/-    1.33  0.130 / 0.320
G27     319.7          16.8                7.1 +/-    2.01      16.9 +/-    2.01  0.120 / 0.450
G29     168.1          34.8               10.5 +/-    1.27      16.7 +/-    1.27  0.080 / 0.290