PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/02/16-00:43:10 G01 104.5 26.9 7.2 +/- 0.95 13.5 +/- 0.95 0.040 / 0.060 G07 110.4 56.5 5.6 +/- 0.88 6.6 +/- 0.88 0.040 / 0.070 G08 42.0 20.1 3.9 +/- 0.83 8.5 +/- 0.83 0.040 / 0.060 G09 175.1 12.3 10.6 +/- 1.47 28.1 +/- 1.47 0.040 / 0.080 G11 89.0 43.5 6.4 +/- 0.86 8.8 +/- 0.86 0.090 / 0.160 G13 308.2 29.5 4.4 +/- 2.53 7.7 +/- 2.53 0.100 / 0.160 G17 207.5 39.0 10.0 +/- 1.46 14.7 +/- 1.46 0.080 / 0.180 G19 209.8 15.6 7.3 +/- 6.56 18.0 +/- 6.56 0.080 / 0.160 G28 324.5 61.5 5.2 +/- 1.33 5.9 +/- 1.33 0.040 / 0.090 G30 61.3 77.8 5.8 +/- 0.44 5.9 +/- 0.44 0.040 / 0.090