PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/06/10-18:28:00 G02 199.7 14.8 11.7 +/- 1.77 29.4 +/- 1.77 0.090 / 0.180 G06 173.1 46.6 13.8 +/- 0.99 18.1 +/- 0.99 0.090 / 0.180 G13 230.4 17.3 14.5 +/- 2.62 34.0 +/- 2.62 0.050 / 0.100 G17 12.4 65.3 9.1 +/- 0.76 9.9 +/- 0.76 0.050 / 0.090 G19 304.9 71.9 10.3 +/- 0.81 10.8 +/- 0.81 0.160 / 0.300 G24 313.1 25.4 12.1 +/- 2.77 23.4 +/- 2.77 0.130 / 0.300 G28 76.6 47.1 10.3 +/- 0.56 13.4 +/- 0.56 0.030 / 0.050 G30 155.3 17.1 12.9 +/- 1.95 30.5 +/- 1.95 0.030 / 0.050