PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/12/01-06:28:00 G01 37.8 11.2 3.8 +/- 3.39 10.4 +/- 3.39 0.060 / 0.140 G02 198.6 13.3 4.5 +/- 2.31 11.7 +/- 2.31 0.050 / 0.100 G06 172.5 43.8 7.8 +/- 1.00 10.7 +/- 1.00 0.080 / 0.340 G13 232.5 19.8 7.5 +/- 2.19 16.5 +/- 2.19 0.080 / 0.300 G15 264.2 10.7 3.9 +/- 1.81 10.8 +/- 1.81 0.080 / 0.370 G17 10.9 66.9 4.7 +/- 0.77 5.1 +/- 0.77 0.070 / 0.300 G19 296.3 72.3 4.9 +/- 0.91 5.1 +/- 0.91 0.040 / 0.070 G24 315.2 21.3 1.0 +/- 4.48 2.1 +/- 4.48 0.040 / 0.070 G28 68.3 51.3 5.3 +/- 0.53 6.6 +/- 0.53 0.050 / 0.050 G30 156.9 26.9 8.0 +/- 1.52 15.0 +/- 1.52 0.030 / 0.040