PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/11/14-01:57:50 G03 228.7 64.7 5.3 +/- 1.03 5.8 +/- 1.03 0.040 / 0.040 G07 251.6 11.3 -2.8 +/- 17.06 -7.6 +/- 17.06 0.040 / 0.050 G09 306.6 22.5 3.7 +/- 1.43 7.6 +/- 1.43 0.060 / 0.220 G14 104.4 10.1 6.2 +/- 1.92 17.4 +/- 1.92 0.080 / 0.180 G16 128.7 62.2 -4.1 +/- 0.72 -4.6 +/- 0.72 0.210 / 0.250 G22 192.9 50.7 7.2 +/- 0.57 9.0 +/- 0.57 0.250 / 0.150 G23 322.4 52.3 4.9 +/- 0.63 6.0 +/- 0.63 0.030 / 0.040 G26 65.0 51.7 3.9 +/- 1.08 4.8 +/- 1.08 0.030 / 0.040 G31 53.9 18.8 1.5 +/- 3.28 3.5 +/- 3.28 0.130 / 0.140