PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/07/05-00:12:40 G02 84.8 13.2 8.8 +/- 2.09 22.8 +/- 2.09 0.190 / 0.110 G05 45.0 30.4 8.1 +/- 1.59 14.1 +/- 1.59 0.130 / 0.080 G13 96.7 33.8 10.6 +/- 0.80 17.2 +/- 0.80 0.080 / 0.120 G15 145.4 38.9 11.5 +/- 0.95 17.0 +/- 0.95 0.080 / 0.130 G20 234.5 16.8 12.1 +/- 1.94 28.8 +/- 1.94 0.020 / 0.020 G21 297.9 36.0 9.8 +/- 1.29 15.3 +/- 1.29 0.020 / 0.020 G25 208.0 24.3 11.2 +/- 1.44 22.2 +/- 1.44 0.050 / 0.050 G26 302.4 19.7 7.2 +/- 1.47 15.9 +/- 1.47 0.030 / 0.080 G29 19.4 86.6 9.1 +/- 0.59 9.1 +/- 0.59 0.120 / 0.130