PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/04/02-23:27:50 G01 48.0 23.9 9.3 +/- 0.73 18.7 +/- 0.73 0.050 / 0.130 G06 177.5 27.5 14.9 +/- 2.19 27.5 +/- 2.19 0.060 / 0.120 G07 147.2 10.4 16.2 +/- 4.29 44.6 +/- 4.29 0.160 / 0.370 G11 44.6 14.7 8.8 +/- 1.09 22.1 +/- 1.09 0.100 / 0.330 G13 248.3 28.8 11.8 +/- 1.27 21.2 +/- 1.27 0.030 / 0.030 G15 280.7 15.4 10.5 +/- 1.62 25.8 +/- 1.62 0.030 / 0.030 G17 308.1 77.2 10.5 +/- 0.91 10.8 +/- 0.91 0.040 / 0.050 G19 251.3 61.6 11.9 +/- 0.81 13.3 +/- 0.81 0.040 / 0.070 G28 57.1 51.5 10.1 +/- 0.90 12.5 +/- 0.90 0.050 / 0.110 G30 150.3 36.3 13.6 +/- 1.13 21.1 +/- 1.13 0.090 / 0.120