PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/07/03-01:12:40 G05 51.5 10.9 7.6 +/- 2.13 20.8 +/- 2.13 0.170 / 0.380 G10 240.8 17.6 13.0 +/- 2.13 30.3 +/- 2.13 0.140 / 0.330 G13 67.0 35.2 10.2 +/- 0.81 16.1 +/- 0.81 0.090 / 0.480 G15 115.4 56.1 11.5 +/- 0.44 13.6 +/- 0.44 0.120 / 0.570 G16 306.8 15.0 6.5 +/- 2.30 16.2 +/- 2.30 0.050 / 0.060 G20 252.1 35.7 12.7 +/- 0.95 19.9 +/- 0.95 0.060 / 0.070 G21 319.0 50.9 10.5 +/- 0.77 13.1 +/- 0.77 0.100 / 0.340 G26 278.7 19.7 9.2 +/- 1.44 20.4 +/- 1.44 0.140 / 0.360 G29 160.7 65.5 10.7 +/- 1.74 11.6 +/- 1.74 0.050 / 0.130