PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/09/10-13:28:10 G02 202.3 19.3 6.9 +/- 1.59 15.5 +/- 1.59 0.130 / 0.220 G06 167.6 58.0 9.7 +/- 0.61 11.2 +/- 0.61 0.100 / 0.230 G13 224.9 11.2 5.1 +/- 2.14 13.9 +/- 2.14 0.180 / 0.510 G17 26.6 56.5 8.0 +/- 0.98 9.4 +/- 0.98 0.210 / 0.500 G19 316.5 69.8 7.8 +/- 0.49 8.2 +/- 0.49 0.090 / 0.100 G24 306.5 33.5 4.2 +/- 2.06 6.8 +/- 2.06 0.080 / 0.110 G28 90.5 38.8 8.8 +/- 0.97 13.0 +/- 0.97 0.040 / 0.030 G30 158.0 13.3 7.9 +/- 1.55 20.5 +/- 1.55 0.050 / 0.040