PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/06/07-03:43:00 G10 256.8 31.4 16.7 +/- 1.88 28.4 +/- 1.88 0.140 / 0.400 G13 48.0 25.8 13.1 +/- 2.15 25.1 +/- 2.15 0.190 / 0.360 G15 74.1 55.6 12.1 +/- 0.74 14.3 +/- 0.74 0.030 / 0.040 G16 287.8 14.9 10.6 +/- 1.61 26.5 +/- 1.61 0.040 / 0.040 G20 290.7 62.0 13.1 +/- 1.19 14.7 +/- 1.19 0.210 / 0.190 G21 342.0 64.6 13.3 +/- 0.74 14.5 +/- 0.74 0.120 / 0.170 G26 260.1 12.6 15.7 +/- 3.55 41.4 +/- 3.55 0.090 / 0.170 G27 322.0 10.8 -9.4 +/- 27.91 -25.8 +/- 27.91 0.130 / 0.180 G29 166.8 43.0 15.9 +/- 0.55 22.1 +/- 0.55 0.030 / 0.040