PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/06/02-01:27:50 G02 64.2 28.8 9.3 +/- 0.73 16.7 +/- 0.73 0.050 / 0.130 G05 51.4 55.0 8.7 +/- 0.45 10.4 +/- 0.45 0.040 / 0.130 G12 183.0 26.1 13.2 +/- 1.93 25.1 +/- 1.93 0.200 / 0.350 G13 123.9 18.9 14.0 +/- 1.44 31.7 +/- 1.44 0.160 / 0.260 G15 161.2 16.3 16.2 +/- 1.97 39.2 +/- 1.97 0.110 / 0.400 G20 221.3 11.9 6.9 +/- 27.09 18.4 +/- 27.09 0.090 / 0.420 G21 275.5 20.1 9.0 +/- 1.67 19.7 +/- 1.67 0.040 / 0.050 G25 230.2 47.9 11.1 +/- 1.63 14.4 +/- 1.63 0.040 / 0.040 G29 331.1 59.0 10.1 +/- 0.89 11.5 +/- 0.89 0.060 / 0.120