PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/08/30-13:58:10 G01 52.5 26.8 8.7 +/- 1.79 16.3 +/- 1.79 0.110 / 0.280 G06 178.7 22.0 11.0 +/- 1.16 23.1 +/- 1.16 0.090 / 0.250 G07 145.0 12.7 10.4 +/- 1.92 27.3 +/- 1.92 0.090 / 0.360 G11 44.8 15.2 8.2 +/- 1.66 20.3 +/- 1.66 0.100 / 0.360 G13 256.1 31.8 10.0 +/- 0.95 16.9 +/- 0.95 0.070 / 0.110 G15 288.6 15.8 5.4 +/- 3.00 13.3 +/- 3.00 0.060 / 0.100 G17 313.1 79.6 9.1 +/- 0.82 9.2 +/- 0.82 0.150 / 0.450 G19 243.6 59.7 10.3 +/- 0.63 11.7 +/- 0.63 0.150 / 0.420 G28 48.5 53.8 8.7 +/- 0.48 10.5 +/- 0.48 0.040 / 0.070 G30 148.3 46.2 9.5 +/- 0.65 12.6 +/- 0.65 0.040 / 0.060