PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/09/06-12:27:40 G02 200.6 12.7 3.4 +/- 4.78 9.0 +/- 4.78 0.100 / 0.190 G06 171.1 48.2 5.3 +/- 0.46 6.9 +/- 0.46 0.090 / 0.180 G13 230.0 17.2 4.4 +/- 2.57 10.3 +/- 2.57 0.040 / 0.060 G17 9.7 66.3 3.3 +/- 0.60 3.6 +/- 0.60 0.040 / 0.070 G19 308.2 72.3 4.1 +/- 0.31 4.3 +/- 0.31 0.030 / 0.030 G24 313.6 24.3 4.3 +/- 2.79 8.5 +/- 2.79 0.020 / 0.030 G28 75.1 48.3 2.5 +/- 0.66 3.2 +/- 0.66 0.040 / 0.040 G30 156.7 20.9 5.1 +/- 1.87 11.0 +/- 1.87 0.040 / 0.040