PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/11/04-07:28:10 G01 52.3 26.4 3.8 +/- 2.03 7.2 +/- 2.03 0.040 / 0.040 G06 177.5 20.9 6.0 +/- 1.93 12.8 +/- 1.93 0.050 / 0.050 G07 144.3 16.2 5.6 +/- 1.10 13.5 +/- 1.10 0.120 / 0.310 G11 46.5 21.8 2.9 +/- 2.41 6.1 +/- 2.41 0.130 / 0.290 G13 253.7 33.6 6.9 +/- 1.32 11.3 +/- 1.32 0.080 / 0.110 G15 286.2 16.6 3.5 +/- 2.73 8.3 +/- 2.73 0.150 / 0.140 G17 286.3 79.2 6.9 +/- 0.59 7.0 +/- 0.59 0.030 / 0.020 G19 239.7 58.6 6.3 +/- 2.30 7.2 +/- 2.30 0.030 / 0.020 G28 32.3 58.9 4.8 +/- 1.00 5.5 +/- 1.00 0.040 / 0.050 G30 148.5 49.4 9.1 +/- 0.58 11.5 +/- 0.58 0.040 / 0.050