PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/11/13-04:42:40 G07 11.1 67.3 2.5 +/- 0.81 2.7 +/- 0.81 0.030 / 0.030 G08 65.4 47.9 4.4 +/- 1.83 5.7 +/- 1.83 0.030 / 0.020 G09 176.4 50.3 6.5 +/- 1.00 8.1 +/- 1.00 0.200 / 0.140 G11 131.4 25.8 5.0 +/- 2.18 9.5 +/- 2.18 0.210 / 0.150 G23 160.5 25.0 5.0 +/- 2.59 9.8 +/- 2.59 0.080 / 0.140 G27 43.1 21.7 2.8 +/- 1.94 6.0 +/- 1.94 0.080 / 0.170 G28 253.4 41.5 4.4 +/- 2.75 6.2 +/- 2.75 0.040 / 0.050 G30 315.6 46.4 3.5 +/- 0.58 4.7 +/- 0.58 0.040 / 0.040