PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/12/08-04:43:10 G01 64.0 30.8 4.7 +/- 0.74 8.1 +/- 0.74 0.030 / 0.030 G07 139.1 27.9 7.7 +/- 1.14 14.1 +/- 1.14 0.030 / 0.040 G11 52.8 32.2 3.3 +/- 1.09 5.5 +/- 1.09 0.050 / 0.080 G13 267.9 38.1 5.6 +/- 2.86 8.5 +/- 2.86 0.070 / 0.100 G15 296.3 17.1 5.2 +/- 1.89 12.3 +/- 1.89 0.110 / 0.210 G17 239.7 73.3 6.1 +/- 0.33 6.3 +/- 0.33 0.130 / 0.230 G19 226.1 48.0 5.8 +/- 2.34 7.6 +/- 2.34 0.080 / 0.110 G28 8.6 61.1 4.0 +/- 1.60 4.5 +/- 1.60 0.100 / 0.100 G30 140.2 62.5 6.0 +/- 0.65 6.7 +/- 0.65 0.050 / 0.050