PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/06/04-18:13:10 G01 46.4 22.5 10.7 +/- 2.67 22.3 +/- 2.67 0.030 / 0.060 G06 177.2 27.9 15.1 +/- 1.29 27.7 +/- 1.29 0.040 / 0.060 G11 43.6 11.5 10.5 +/- 3.72 28.4 +/- 3.72 0.330 / 0.300 G13 245.3 28.7 13.6 +/- 2.17 24.5 +/- 2.17 0.270 / 0.400 G15 279.1 15.0 12.2 +/- 3.47 30.4 +/- 3.47 0.240 / 0.290 G17 328.4 77.5 13.1 +/- 0.33 13.4 +/- 0.33 0.280 / 0.510 G19 253.6 64.0 13.2 +/- 0.81 14.5 +/- 0.81 0.070 / 0.150 G24 318.5 11.4 -7.9 +/- 33.76 -21.5 +/- 33.76 0.090 / 0.160 G28 51.4 54.7 12.1 +/- 1.00 14.4 +/- 1.00 0.030 / 0.030 G30 150.5 34.0 14.5 +/- 1.69 23.4 +/- 1.69 0.020 / 0.030