PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/08/04-16:42:40 G02 228.0 68.0 9.7 +/- 0.88 10.3 +/- 0.88 0.080 / 0.560 G05 174.5 10.3 -6.3 +/- 23.35 -17.3 +/- 23.35 0.080 / 0.500 G06 43.3 64.3 10.1 +/- 0.68 11.1 +/- 0.68 0.030 / 0.050 G12 320.4 44.5 8.6 +/- 1.81 11.7 +/- 1.81 0.040 / 0.060 G17 63.1 29.2 8.2 +/- 0.73 14.6 +/- 0.73 0.040 / 0.040 G19 51.3 41.3 9.8 +/- 0.86 14.0 +/- 0.86 0.050 / 0.040 G24 253.3 37.8 11.3 +/- 0.84 17.0 +/- 0.84 0.060 / 0.090 G28 127.4 11.6 7.7 +/- 2.65 20.6 +/- 2.65 0.060 / 0.110