PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/03/14-01:28:00 G01 38.5 11.7 6.7 +/- 4.73 18.0 +/- 4.73 0.040 / 0.060 G02 198.9 15.6 9.6 +/- 3.05 23.6 +/- 3.05 0.040 / 0.060 G06 174.5 45.2 9.7 +/- 0.49 13.0 +/- 0.49 0.380 / 0.210 G13 233.2 17.8 8.3 +/- 2.38 19.2 +/- 2.38 0.330 / 0.330 G17 6.8 67.3 5.9 +/- 0.38 6.3 +/- 0.38 0.040 / 0.050 G19 298.0 71.1 5.1 +/- 0.88 5.4 +/- 0.88 0.040 / 0.050 G24 314.3 23.8 5.4 +/- 1.71 10.8 +/- 1.71 0.030 / 0.030 G28 80.2 43.2 7.1 +/- 1.38 9.8 +/- 1.38 0.030 / 0.030 G30 155.1 18.5 10.6 +/- 1.63 24.2 +/- 1.63 0.170 / 0.260