PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/06/03-18:57:50 G02 199.7 15.5 13.5 +/- 2.42 33.3 +/- 2.42 0.050 / 0.050 G06 173.2 47.1 13.0 +/- 0.83 17.1 +/- 0.83 0.040 / 0.040 G13 229.9 16.8 14.1 +/- 3.45 33.4 +/- 3.45 0.080 / 0.140 G17 13.9 64.6 9.4 +/- 0.94 10.3 +/- 0.94 0.080 / 0.180 G19 306.8 71.9 11.3 +/- 0.82 11.8 +/- 0.82 0.050 / 0.080 G24 312.7 25.9 11.1 +/- 1.84 21.3 +/- 1.84 0.050 / 0.070 G28 77.5 46.7 10.1 +/- 0.63 13.3 +/- 0.63 0.110 / 0.480 G30 155.3 16.4 12.4 +/- 1.86 29.9 +/- 1.86 0.120 / 0.410