PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/03/08-19:58:00 G07 333.0 58.4 13.3 +/- 0.82 15.3 +/- 0.82 0.040 / 0.040 G08 104.1 49.9 14.4 +/- 0.89 18.2 +/- 0.89 0.030 / 0.040 G09 204.8 79.0 14.5 +/- 0.25 14.7 +/- 0.25 0.240 / 0.310 G11 147.4 11.1 15.1 +/- 4.89 41.2 +/- 4.89 0.190 / 0.140 G16 44.8 15.5 9.2 +/- 2.13 22.7 +/- 2.13 0.020 / 0.020 G23 154.2 48.3 15.7 +/- 0.49 20.2 +/- 0.49 0.030 / 0.020 G27 62.3 35.4 12.3 +/- 1.34 19.4 +/- 1.34 0.080 / 0.060 G28 232.7 22.2 16.1 +/- 1.47 33.7 +/- 1.47 0.080 / 0.080 G30 298.2 32.2 12.5 +/- 1.15 21.0 +/- 1.15 0.040 / 0.050