PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/11/25-04:57:50 G01 85.8 31.3 6.6 +/- 0.62 11.3 +/- 0.62 0.030 / 0.030 G07 126.5 44.2 8.6 +/- 1.28 11.7 +/- 1.28 0.030 / 0.030 G11 69.5 42.5 6.2 +/- 0.61 8.7 +/- 0.61 0.100 / 0.210 G13 291.6 37.9 5.1 +/- 1.50 7.7 +/- 1.50 0.100 / 0.200 G15 312.3 12.2 1.9 +/- 1.27 4.9 +/- 1.27 0.040 / 0.070 G17 214.0 55.5 7.4 +/- 2.05 8.8 +/- 2.05 0.040 / 0.070 G19 214.0 30.8 5.9 +/- 1.53 10.2 +/- 1.53 0.040 / 0.050 G28 333.4 60.9 4.2 +/- 0.71 4.8 +/- 0.71 0.040 / 0.050 G30 102.2 78.9 6.4 +/- 0.94 6.5 +/- 0.94 0.080 / 0.120