PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/07/02-14:28:10 G01 126.6 12.1 10.9 +/- 2.66 29.1 +/- 2.66 0.320 / 0.470 G07 54.2 69.5 9.1 +/- 0.49 9.7 +/- 0.49 0.110 / 0.310 G08 50.1 39.2 8.6 +/- 1.04 12.7 +/- 1.04 0.030 / 0.030 G09 177.2 34.3 10.6 +/- 1.39 17.1 +/- 1.39 0.030 / 0.040 G11 117.4 35.6 10.7 +/- 1.16 16.8 +/- 1.16 0.030 / 0.030 G13 320.9 12.2 5.7 +/- 12.64 15.3 +/- 12.64 0.030 / 0.060 G17 200.3 14.8 9.1 +/- 2.14 22.8 +/- 2.14 0.140 / 0.320 G18 103.1 16.9 9.5 +/- 1.58 22.6 +/- 1.58 0.160 / 0.200 G28 277.2 53.2 10.1 +/- 3.67 12.3 +/- 3.67 0.080 / 0.130 G30 333.1 60.7 8.3 +/- 0.64 9.3 +/- 0.64 0.070 / 0.100