PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/03/17-00:43:00 G01 46.3 22.3 8.9 +/- 1.73 18.5 +/- 1.73 0.140 / 0.170 G06 177.5 29.6 10.1 +/- 1.09 17.8 +/- 1.09 0.210 / 0.220 G11 44.3 13.1 7.6 +/- 1.87 19.8 +/- 1.87 0.040 / 0.050 G13 246.0 27.4 9.6 +/- 2.97 17.7 +/- 2.97 0.040 / 0.050 G15 278.2 14.9 6.7 +/- 1.62 16.8 +/- 1.62 0.030 / 0.030 G17 324.2 76.7 8.6 +/- 0.41 8.8 +/- 0.41 0.020 / 0.020 G19 256.4 63.8 9.2 +/- 0.44 10.1 +/- 0.44 0.260 / 0.280 G24 318.7 11.9 3.9 +/- 27.28 10.4 +/- 27.28 0.300 / 0.350 G28 60.8 50.4 8.5 +/- 0.49 10.7 +/- 0.49 0.070 / 0.170 G30 151.0 33.1 11.6 +/- 1.42 19.1 +/- 1.42 0.110 / 0.160