PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/11/10-10:12:30 G02 200.1 22.4 4.3 +/- 1.60 9.0 +/- 1.60 0.080 / 0.070 G06 174.6 52.2 8.4 +/- 0.74 10.3 +/- 0.74 0.060 / 0.090 G13 228.0 12.6 3.5 +/- 2.25 9.2 +/- 2.25 0.090 / 0.090 G17 25.4 57.7 5.2 +/- 1.20 6.1 +/- 1.20 0.070 / 0.100 G19 331.8 70.9 3.3 +/- 0.44 3.4 +/- 0.44 0.040 / 0.050 G24 310.5 29.0 2.2 +/- 1.00 3.9 +/- 1.00 0.040 / 0.040 G28 89.7 38.6 5.3 +/- 1.20 7.8 +/- 1.20 0.040 / 0.040 G30 157.1 13.6 4.6 +/- 1.80 11.9 +/- 1.80 0.080 / 0.040