PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/08/16-09:43:00 G03 193.6 24.0 3.8 +/- 1.91 7.7 +/- 1.91 0.030 / 0.020 G07 291.0 39.0 16.0 +/- 10.81 23.6 +/- 10.81 0.020 / 0.030 G08 140.1 27.9 -1.7 +/- 7.05 -3.1 +/- 7.05 0.100 / 0.580 G09 322.1 64.9 8.5 +/- 4.40 9.3 +/- 4.40 0.050 / 0.070 G16 43.2 41.9 25.6 +/- 16.11 36.1 +/- 16.11 0.040 / 0.070 G23 101.6 82.0 2.0 +/- 1.20 2.0 +/- 1.20 0.040 / 0.090 G26 43.3 14.6 -46.2 +/- 59.42 -116.1 +/- 59.42 0.050 / 0.090 G27 99.4 33.2 -10.3 +/- 12.40 -17.0 +/- 12.40 0.040 / 0.070 G30 271.8 10.2 -14.5 +/- 22.81 -40.4 +/- 22.81 0.040 / 0.080