PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/11/14-06:12:30 G01 126.7 11.9 7.8 +/- 2.41 20.8 +/- 2.41 0.100 / 0.120 G07 56.2 68.9 5.3 +/- 0.30 5.7 +/- 0.30 0.120 / 0.120 G08 49.8 38.4 4.5 +/- 1.20 6.7 +/- 1.20 0.030 / 0.030 G09 178.0 35.7 8.2 +/- 1.03 12.8 +/- 1.03 0.030 / 0.030 G11 117.5 34.6 8.8 +/- 0.95 14.0 +/- 0.95 0.050 / 0.040 G17 199.5 16.8 4.1 +/- 1.51 9.8 +/- 1.51 0.060 / 0.060 G28 277.8 53.5 5.4 +/- 3.13 6.5 +/- 3.13 0.140 / 0.140 G30 334.3 61.0 4.0 +/- 0.61 4.5 +/- 0.61 0.090 / 0.230