PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/06/09-18:58:00 G01 45.3 21.5 8.6 +/- 1.42 18.2 +/- 1.42 0.060 / 0.100 G06 175.5 32.6 13.8 +/- 1.26 22.9 +/- 1.26 0.060 / 0.090 G13 244.1 26.6 13.8 +/- 1.91 25.9 +/- 1.91 0.130 / 0.270 G15 278.8 14.1 10.7 +/- 1.52 27.3 +/- 1.52 0.140 / 0.260 G17 333.8 76.1 12.2 +/- 0.55 12.6 +/- 0.55 0.090 / 0.180 G19 256.7 62.8 11.3 +/- 0.64 12.6 +/- 0.64 0.070 / 0.200 G24 318.2 13.9 9.4 +/- 1.44 24.0 +/- 1.44 0.030 / 0.030 G28 62.0 50.2 11.0 +/- 0.83 13.8 +/- 0.83 0.030 / 0.030 G30 152.4 34.7 13.1 +/- 0.81 20.9 +/- 0.81 0.040 / 0.050