PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/11/13-05:28:00 G01 123.7 14.2 5.7 +/- 2.44 14.5 +/- 2.44 0.030 / 0.040 G07 69.2 67.6 3.7 +/- 0.60 4.0 +/- 0.60 0.030 / 0.040 G08 46.6 33.8 3.0 +/- 0.64 4.8 +/- 0.64 0.030 / 0.020 G09 175.0 28.5 6.6 +/- 2.53 12.0 +/- 2.53 0.020 / 0.070 G11 111.5 37.8 5.7 +/- 1.22 8.7 +/- 1.22 0.180 / 0.320 G13 319.7 15.4 0.5 +/- 2.79 1.3 +/- 2.79 0.170 / 0.290 G17 199.5 21.2 6.5 +/- 1.50 13.9 +/- 1.50 0.120 / 0.460 G18 97.2 18.4 5.5 +/- 1.23 12.5 +/- 1.23 0.100 / 0.370 G28 280.7 53.8 5.2 +/- 0.48 6.2 +/- 0.48 0.100 / 0.230 G30 335.4 62.7 3.1 +/- 0.68 3.5 +/- 0.68 0.090 / 0.250