PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/05/24-17:12:40 G01 125.0 13.4 12.9 +/- 3.43 33.3 +/- 3.43 0.040 / 0.060 G07 59.7 69.3 13.3 +/- 0.56 14.1 +/- 0.56 0.040 / 0.060 G08 49.6 39.3 11.6 +/- 0.99 17.0 +/- 0.99 0.030 / 0.040 G09 177.8 33.2 14.2 +/- 1.29 23.2 +/- 1.29 0.030 / 0.030 G11 116.3 36.6 13.9 +/- 0.94 21.5 +/- 0.94 0.030 / 0.050 G13 320.4 13.7 10.8 +/- 2.11 27.9 +/- 2.11 0.030 / 0.050 G17 201.2 15.1 14.1 +/- 1.93 35.0 +/- 1.93 0.060 / 0.120 G18 101.6 17.9 13.4 +/- 1.63 31.0 +/- 1.63 0.060 / 0.110 G28 280.8 54.4 14.4 +/- 1.04 17.3 +/- 1.04 0.120 / 0.350 G30 337.2 63.2 12.3 +/- 0.74 13.6 +/- 0.74 0.120 / 0.300