PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/10/02-22:43:10 G08 306.6 20.5 14.6 +/- 2.68 31.7 +/- 2.68 0.040 / 0.050 G10 334.1 60.2 13.7 +/- 0.66 15.6 +/- 0.66 0.040 / 0.060 G14 219.3 34.2 20.5 +/- 0.80 33.0 +/- 0.80 0.050 / 0.090 G18 42.2 58.4 14.7 +/- 0.47 16.9 +/- 0.47 0.050 / 0.090 G21 135.8 53.1 18.8 +/- 0.54 22.9 +/- 0.54 0.030 / 0.080 G24 73.2 30.5 17.1 +/- 0.59 29.6 +/- 0.59 0.040 / 0.070 G27 270.3 37.2 17.9 +/- 1.09 27.3 +/- 1.09 0.070 / 0.130 G32 225.3 50.7 18.6 +/- 0.89 23.3 +/- 0.89 0.060 / 0.120