PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/08/06-08:43:00 G03 188.9 16.5 3.9 +/- 1.06 9.3 +/- 1.06 0.060 / 0.090 G07 298.1 43.5 4.3 +/- 0.98 5.9 +/- 0.98 0.050 / 0.090 G08 141.6 30.8 5.9 +/- 1.16 10.2 +/- 1.16 0.040 / 0.080 G09 318.9 68.0 0.9 +/- 0.56 1.0 +/- 0.56 0.040 / 0.060 G16 42.3 32.9 1.0 +/- 1.42 1.7 +/- 1.42 0.080 / 0.110 G23 130.9 70.6 3.1 +/- 0.98 3.2 +/- 0.98 0.060 / 0.110 G27 93.9 35.4 3.6 +/- 0.52 5.7 +/- 0.52 0.030 / 0.060 G30 278.1 16.2 5.3 +/- 1.73 12.8 +/- 1.73 0.030 / 0.040