PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/11/25-06:57:40 G01 55.6 28.7 2.1 +/- 0.89 3.8 +/- 0.89 0.040 / 0.050 G06 179.3 18.4 4.5 +/- 1.79 10.4 +/- 1.79 0.040 / 0.060 G07 143.8 16.5 4.9 +/- 1.46 11.6 +/- 1.46 0.060 / 0.190 G11 45.8 18.8 2.3 +/- 1.27 5.1 +/- 1.27 0.080 / 0.160 G13 256.8 33.8 6.4 +/- 2.08 10.3 +/- 2.08 0.060 / 0.140 G15 291.7 15.5 3.3 +/- 3.46 8.1 +/- 3.46 0.080 / 0.160 G17 292.6 80.1 6.7 +/- 1.09 6.8 +/- 1.09 0.030 / 0.020 G19 236.5 51.8 7.8 +/- 1.52 9.6 +/- 1.52 0.030 / 0.030 G28 40.0 56.3 4.4 +/- 0.67 5.2 +/- 0.67 0.040 / 0.050 G30 147.0 49.5 8.1 +/- 0.96 10.3 +/- 0.96 0.040 / 0.070