PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/02/10-01:12:50 G01 102.4 27.9 6.5 +/- 0.76 12.0 +/- 0.76 0.040 / 0.070 G07 113.3 54.9 6.0 +/- 0.61 7.2 +/- 0.61 0.040 / 0.060 G08 41.9 18.2 3.1 +/- 0.86 7.1 +/- 0.86 0.040 / 0.060 G09 174.6 10.5 7.0 +/- 2.17 19.2 +/- 2.17 0.040 / 0.050 G11 85.8 43.4 5.4 +/- 0.48 7.4 +/- 0.48 0.090 / 0.150 G13 306.4 30.6 5.1 +/- 0.94 8.9 +/- 0.94 0.090 / 0.150 G17 208.4 41.4 7.4 +/- 1.51 10.5 +/- 1.51 0.030 / 0.050 G19 210.4 17.6 8.0 +/- 2.07 18.6 +/- 2.07 0.030 / 0.060 G28 328.7 61.7 4.0 +/- 0.94 4.4 +/- 0.94 0.040 / 0.080 G30 70.2 77.7 5.7 +/- 0.63 5.8 +/- 0.63 0.040 / 0.080