PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/08/09-15:43:10 G02 201.9 22.8 13.5 +/- 2.86 27.7 +/- 2.86 0.170 / 0.270 G06 165.0 60.5 13.0 +/- 0.44 14.7 +/- 0.44 0.150 / 0.260 G12 303.5 12.2 7.5 +/- 6.26 20.0 +/- 6.26 0.090 / 0.080 G17 28.0 55.5 10.0 +/- 0.92 11.9 +/- 0.92 0.100 / 0.120 G19 325.9 69.8 9.9 +/- 0.69 10.5 +/- 0.69 0.300 / 0.340 G24 305.7 34.0 7.9 +/- 2.61 12.8 +/- 2.61 0.240 / 0.200 G28 92.7 37.2 10.3 +/- 0.95 15.7 +/- 0.95 0.040 / 0.040 G30 158.1 11.7 11.8 +/- 2.05 31.8 +/- 2.05 0.040 / 0.030