PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/03/04-00:42:30 G01 44.2 20.4 7.2 +/- 2.82 15.7 +/- 2.82 0.300 / 0.270 G06 179.7 28.2 25.7 +/- 2.48 46.8 +/- 2.48 0.190 / 0.290 G13 242.2 26.3 9.1 +/- 1.64 17.2 +/- 1.64 0.070 / 0.190 G15 276.0 14.1 7.1 +/- 0.85 18.0 +/- 0.85 0.120 / 0.210 G17 353.8 74.0 4.0 +/- 0.52 4.1 +/- 0.52 0.040 / 0.040 G19 260.1 65.2 10.2 +/- 0.59 11.1 +/- 0.59 0.040 / 0.040 G24 317.4 16.3 6.6 +/- 1.45 15.8 +/- 1.45 0.050 / 0.040 G28 59.3 52.1 8.3 +/- 0.92 10.2 +/- 0.92 0.060 / 0.040 G30 152.8 33.5 11.6 +/- 1.14 19.0 +/- 1.14 0.130 / 0.120