PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/03/26-23:42:50 G01 53.2 27.4 8.2 +/- 2.27 15.2 +/- 2.27 0.110 / 0.150 G06 178.9 21.3 -3.2 +/- 38.32 -6.9 +/- 38.32 0.110 / 0.130 G07 145.2 16.1 11.3 +/- 2.11 27.3 +/- 2.11 0.030 / 0.030 G11 46.4 20.0 7.6 +/- 2.69 16.8 +/- 2.69 0.030 / 0.030 G13 254.9 32.1 10.7 +/- 2.40 17.9 +/- 2.40 0.070 / 0.070 G15 286.6 16.3 10.9 +/- 1.23 26.2 +/- 1.23 0.040 / 0.080 G17 279.7 76.8 10.1 +/- 0.46 10.3 +/- 0.46 0.040 / 0.050 G19 241.5 56.7 10.8 +/- 2.54 12.7 +/- 2.54 0.050 / 0.040 G28 47.9 53.9 9.5 +/- 1.10 11.5 +/- 1.10 0.270 / 0.330 G30 147.3 42.3 11.9 +/- 1.02 16.7 +/- 1.02 0.250 / 0.390