PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/07/09-01:12:30 G10 249.2 25.6 12.1 +/- 2.06 23.3 +/- 2.06 0.130 / 0.350 G13 55.1 30.8 9.0 +/- 1.16 15.5 +/- 1.16 0.130 / 0.370 G15 93.1 58.6 11.2 +/- 1.19 12.9 +/- 1.19 0.040 / 0.040 G16 296.0 15.9 7.3 +/- 1.55 17.8 +/- 1.55 0.040 / 0.050 G20 261.5 40.3 9.9 +/- 3.67 14.3 +/- 3.67 0.080 / 0.130 G21 330.6 58.4 9.8 +/- 1.04 11.2 +/- 1.04 0.070 / 0.170 G26 267.8 16.3 10.3 +/- 1.89 24.9 +/- 1.89 0.040 / 0.040 G29 164.8 52.8 11.4 +/- 0.84 13.9 +/- 0.84 0.030 / 0.030