PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/06/04-15:28:10 G01 124.2 13.0 11.0 +/- 2.22 28.8 +/- 2.22 0.030 / 0.050 G07 72.7 65.6 10.2 +/- 0.63 11.1 +/- 0.63 0.030 / 0.040 G08 49.1 38.3 7.8 +/- 0.29 11.7 +/- 0.29 0.160 / 0.400 G09 178.6 34.8 9.7 +/- 1.25 15.5 +/- 1.25 0.170 / 0.410 G11 114.6 37.5 10.7 +/- 0.90 16.2 +/- 0.90 0.040 / 0.080 G13 320.0 14.7 8.1 +/- 3.58 20.3 +/- 3.58 0.050 / 0.080 G17 200.1 16.3 10.2 +/- 1.19 24.5 +/- 1.19 0.060 / 0.140 G18 99.8 17.8 9.9 +/- 2.02 23.0 +/- 2.02 0.050 / 0.120 G28 274.1 50.2 9.5 +/- 0.93 12.0 +/- 0.93 0.100 / 0.390 G30 341.7 65.5 8.9 +/- 0.36 9.6 +/- 0.36 0.110 / 0.390