PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/11/06-04:28:00 G07 332.3 57.9 3.8 +/- 0.53 4.4 +/- 0.53 0.030 / 0.040 G08 98.1 50.7 7.0 +/- 0.56 8.8 +/- 0.56 0.040 / 0.030 G09 181.5 72.3 6.7 +/- 0.79 7.0 +/- 0.79 0.060 / 0.050 G11 145.5 12.7 6.6 +/- 2.98 17.3 +/- 2.98 0.050 / 0.060 G23 155.7 45.8 6.9 +/- 0.76 9.1 +/- 0.76 0.040 / 0.030 G27 58.7 34.0 5.0 +/- 2.60 8.0 +/- 2.60 0.030 / 0.020 G28 235.3 26.5 5.8 +/- 1.95 10.9 +/- 1.95 0.040 / 0.060 G30 299.5 32.4 4.0 +/- 2.41 6.7 +/- 2.41 0.040 / 0.070