PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/12/05-03:57:30 G01 123.6 14.2 8.9 +/- 2.30 22.7 +/- 2.30 0.030 / 0.040 G07 70.3 67.3 6.5 +/- 0.38 7.0 +/- 0.38 0.030 / 0.040 G08 46.5 33.7 4.5 +/- 0.65 7.3 +/- 0.65 0.030 / 0.040 G09 175.7 29.4 9.0 +/- 1.69 16.0 +/- 1.69 0.030 / 0.040 G11 111.3 37.9 7.6 +/- 1.39 11.5 +/- 1.39 0.060 / 0.130 G13 319.7 15.5 0.7 +/- 1.77 1.8 +/- 1.77 0.100 / 0.110 G17 199.4 21.4 8.1 +/- 1.76 17.2 +/- 1.76 0.100 / 0.510 G28 280.4 53.6 7.1 +/- 0.61 8.6 +/- 0.61 0.120 / 0.370 G30 335.7 62.9 5.0 +/- 0.78 5.6 +/- 0.78 0.040 / 0.070