PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/12/03-06:42:20 G02 199.6 23.7 5.6 +/- 1.96 11.2 +/- 1.96 0.190 / 0.220 G06 168.7 55.4 8.7 +/- 0.93 10.3 +/- 0.93 0.200 / 0.390 G13 224.7 12.6 2.8 +/- 9.59 7.3 +/- 9.59 0.050 / 0.060 G17 24.2 58.3 5.8 +/- 0.82 6.7 +/- 0.82 0.050 / 0.060 G19 334.1 71.1 5.0 +/- 0.39 5.2 +/- 0.39 0.030 / 0.030 G24 309.6 29.2 3.4 +/- 1.41 6.1 +/- 1.41 0.040 / 0.040 G28 82.7 46.2 5.6 +/- 1.33 7.5 +/- 1.33 0.250 / 0.370 G30 158.6 16.8 5.1 +/- 1.50 12.3 +/- 1.50 0.120 / 0.430