PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/07/12-00:43:00 G10 243.0 19.8 13.6 +/- 2.13 30.1 +/- 2.13 0.140 / 0.640 G13 63.4 34.2 10.2 +/- 0.94 16.3 +/- 0.94 0.130 / 0.560 G15 110.2 57.4 13.4 +/- 0.46 15.6 +/- 0.46 0.110 / 0.160 G16 303.8 15.5 7.4 +/- 4.16 18.3 +/- 4.16 0.090 / 0.130 G20 253.1 33.0 12.9 +/- 1.56 21.3 +/- 1.56 0.040 / 0.060 G21 322.0 52.9 13.6 +/- 0.88 16.6 +/- 0.88 0.040 / 0.060 G26 275.6 19.0 11.0 +/- 1.34 24.9 +/- 1.34 0.060 / 0.110 G29 162.1 62.0 12.4 +/- 1.38 13.8 +/- 1.38 0.060 / 0.140