PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/06/23-00:43:00 G05 49.3 14.9 6.2 +/- 2.43 15.4 +/- 2.43 0.090 / 0.290 G10 236.9 14.9 12.3 +/- 1.02 30.6 +/- 1.02 0.170 / 0.340 G13 72.9 35.3 10.1 +/- 1.50 16.0 +/- 1.50 0.040 / 0.080 G15 120.2 53.4 11.2 +/- 0.33 13.5 +/- 0.33 0.050 / 0.090 G16 314.0 12.1 5.4 +/- 5.26 14.2 +/- 5.26 0.210 / 0.340 G20 249.7 38.0 11.8 +/- 1.03 17.8 +/- 1.03 0.140 / 0.380 G21 314.9 47.7 9.0 +/- 1.02 11.7 +/- 1.02 0.060 / 0.100 G26 287.0 19.8 5.5 +/- 2.68 12.3 +/- 2.68 0.070 / 0.110 G29 153.2 69.0 10.4 +/- 0.88 11.0 +/- 0.88 0.030 / 0.040