PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/02/05-22:27:40 G07 306.2 45.9 8.0 +/- 1.72 10.6 +/- 1.72 0.150 / 0.270 G08 130.4 40.0 10.8 +/- 1.43 15.7 +/- 1.43 0.070 / 0.300 G09 305.8 77.1 7.2 +/- 0.42 7.4 +/- 0.42 0.070 / 0.060 G16 41.8 25.9 6.4 +/- 3.19 12.3 +/- 3.19 0.060 / 0.060 G23 143.5 63.1 8.8 +/- 0.68 9.7 +/- 0.68 0.210 / 0.180 G27 78.7 36.9 8.7 +/- 0.72 13.4 +/- 0.72 0.100 / 0.200 G28 224.0 12.9 11.5 +/- 2.01 30.0 +/- 2.01 0.040 / 0.060 G30 287.2 25.2 7.2 +/- 1.41 14.1 +/- 1.41 0.040 / 0.060