PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/10/11-09:57:40 G01 37.9 11.2 4.0 +/- 2.53 10.8 +/- 2.53 0.070 / 0.110 G02 199.6 11.7 2.7 +/- 8.60 7.2 +/- 8.60 0.070 / 0.160 G06 171.9 44.9 8.1 +/- 1.13 10.9 +/- 1.13 0.080 / 0.230 G13 232.3 19.3 5.7 +/- 1.49 12.8 +/- 1.49 0.080 / 0.270 G15 265.9 10.4 3.0 +/- 2.02 8.4 +/- 2.02 0.040 / 0.040 G17 8.1 67.6 6.1 +/- 0.94 6.5 +/- 0.94 0.030 / 0.030 G19 297.7 72.2 5.7 +/- 0.96 6.0 +/- 0.96 0.040 / 0.060 G24 315.1 21.6 1.0 +/- 2.80 2.1 +/- 2.80 0.040 / 0.070 G28 70.2 50.3 5.3 +/- 0.29 6.7 +/- 0.29 0.100 / 0.250 G30 156.5 25.1 7.3 +/- 0.83 14.2 +/- 0.83 0.080 / 0.190