PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/11/23-06:58:00 G01 38.4 12.2 3.5 +/- 2.25 9.2 +/- 2.25 0.060 / 0.130 G02 198.7 11.8 3.5 +/- 4.81 9.4 +/- 4.81 0.060 / 0.120 G06 172.8 42.6 9.8 +/- 1.84 13.6 +/- 1.84 0.130 / 0.360 G13 233.5 20.6 6.6 +/- 1.44 14.3 +/- 1.44 0.080 / 0.320 G15 265.6 11.2 4.5 +/- 3.78 12.3 +/- 3.78 0.220 / 0.320 G17 8.5 68.0 6.9 +/- 0.73 7.3 +/- 0.73 0.140 / 0.300 G19 291.7 72.0 6.8 +/- 0.40 7.1 +/- 0.40 0.040 / 0.070 G24 315.7 20.3 2.7 +/- 3.30 6.0 +/- 3.30 0.050 / 0.080 G28 66.7 51.8 6.5 +/- 0.79 8.0 +/- 0.79 0.040 / 0.040 G30 156.6 28.0 9.7 +/- 1.04 17.8 +/- 1.04 0.040 / 0.040