PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/11/17-03:42:50 G07 332.7 58.1 4.6 +/- 0.48 5.3 +/- 0.48 0.040 / 0.040 G08 97.9 50.7 7.1 +/- 0.47 8.8 +/- 0.47 0.030 / 0.040 G09 182.9 72.8 6.5 +/- 0.95 6.8 +/- 0.95 0.070 / 0.060 G11 145.5 12.8 6.9 +/- 3.72 18.2 +/- 3.72 0.060 / 0.080 G23 155.8 45.9 7.0 +/- 0.94 9.3 +/- 0.94 0.040 / 0.070 G27 58.8 34.1 4.6 +/- 2.68 7.4 +/- 2.68 0.040 / 0.060 G28 235.2 26.4 6.1 +/- 2.20 11.6 +/- 2.20 0.030 / 0.030 G30 299.5 32.4 4.5 +/- 2.38 7.5 +/- 2.38 0.040 / 0.030