PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/06/07-01:58:10 G05 51.2 11.0 6.7 +/- 2.41 18.2 +/- 2.41 0.060 / 0.070 G10 240.1 18.4 13.3 +/- 1.18 30.4 +/- 1.18 0.050 / 0.070 G13 67.1 34.4 7.6 +/- 0.66 12.2 +/- 0.66 0.120 / 0.270 G15 111.4 55.7 11.7 +/- 0.35 13.9 +/- 0.35 0.110 / 0.270 G16 310.4 13.2 6.8 +/- 1.23 17.5 +/- 1.23 0.110 / 0.300 G20 254.3 41.6 12.8 +/- 0.81 18.1 +/- 0.81 0.140 / 0.380 G21 319.9 51.1 11.6 +/- 0.96 14.4 +/- 0.96 0.120 / 0.330 G26 282.6 19.1 9.1 +/- 1.64 20.6 +/- 1.64 0.130 / 0.400 G29 156.4 63.0 11.3 +/- 0.67 12.5 +/- 0.67 0.030 / 0.040