PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/07/05-01:28:00 G10 248.7 25.1 12.2 +/- 1.49 23.8 +/- 1.49 0.160 / 0.620 G13 55.7 31.1 10.6 +/- 0.47 18.1 +/- 0.47 0.180 / 0.590 G15 94.1 58.6 12.5 +/- 0.73 14.4 +/- 0.73 0.040 / 0.050 G16 296.7 15.9 9.2 +/- 2.83 22.4 +/- 2.83 0.040 / 0.050 G20 262.0 42.0 13.0 +/- 0.72 18.3 +/- 0.72 0.090 / 0.150 G21 330.0 58.0 10.3 +/- 0.87 11.9 +/- 0.87 0.090 / 0.130 G26 268.4 16.6 11.0 +/- 2.19 26.4 +/- 2.19 0.040 / 0.080 G29 164.6 53.5 11.5 +/- 0.88 13.9 +/- 0.88 0.030 / 0.050