PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/03/05-21:27:50 G07 54.6 67.9 11.2 +/- 0.68 12.0 +/- 0.68 0.130 / 0.160 G08 52.2 40.6 10.0 +/- 0.99 14.4 +/- 0.99 0.170 / 0.220 G09 178.8 40.5 11.7 +/- 2.17 16.9 +/- 2.17 0.050 / 0.090 G11 120.1 33.9 13.4 +/- 0.99 21.7 +/- 0.99 0.050 / 0.100 G17 198.6 13.0 12.0 +/- 1.29 31.2 +/- 1.29 0.040 / 0.050 G18 103.6 14.9 12.9 +/- 1.75 32.1 +/- 1.75 0.040 / 0.050 G23 161.1 12.2 10.8 +/- 2.53 28.6 +/- 2.53 0.070 / 0.270 G27 38.3 12.0 8.4 +/- 2.12 22.5 +/- 2.12 0.110 / 0.290 G28 267.3 48.0 13.0 +/- 1.17 16.8 +/- 1.17 0.030 / 0.040 G30 329.0 57.9 10.3 +/- 0.64 11.9 +/- 0.64 0.040 / 0.040