PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/10/10-08:12:50 G01 82.6 32.0 6.0 +/- 0.56 10.0 +/- 0.56 0.030 / 0.030 G07 129.3 40.2 7.2 +/- 0.61 10.5 +/- 0.61 0.020 / 0.040 G11 64.7 40.0 5.0 +/- 0.34 7.2 +/- 0.34 0.030 / 0.080 G13 287.8 38.5 4.4 +/- 1.79 6.6 +/- 1.79 0.030 / 0.080 G15 311.5 12.2 2.1 +/- 1.55 5.6 +/- 1.55 0.050 / 0.120 G17 217.0 56.9 7.3 +/- 1.37 8.6 +/- 1.37 0.060 / 0.120 G19 215.7 33.5 6.6 +/- 1.23 10.7 +/- 1.23 0.030 / 0.080 G28 341.5 61.4 5.1 +/- 0.61 5.7 +/- 0.61 0.030 / 0.070 G30 115.6 75.2 7.1 +/- 0.73 7.3 +/- 0.73 0.050 / 0.050