PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/08/10-21:13:10 G02 74.5 21.9 8.5 +/- 1.04 17.8 +/- 1.04 0.040 / 0.050 G05 45.1 42.9 8.4 +/- 0.72 11.6 +/- 0.72 0.030 / 0.060 G12 178.0 10.2 10.6 +/- 0.96 29.5 +/- 0.96 0.090 / 0.130 G13 110.3 27.9 12.9 +/- 0.48 23.7 +/- 0.48 0.070 / 0.100 G15 155.5 27.3 12.1 +/- 0.95 22.5 +/- 0.95 0.070 / 0.160 G20 227.6 -10.8 10.0 +/- 2.87 27.3 +/- 2.87 0.080 / 0.170 G21 287.2 28.4 9.7 +/- 1.00 17.7 +/- 1.00 0.030 / 0.030 G25 215.1 35.1 11.4 +/- 1.61 18.1 +/- 1.61 0.040 / 0.040 G26 313.2 15.3 9.4 +/- 2.16 23.1 +/- 2.16 0.090 / 0.180 G29 341.1 73.4 10.1 +/- 0.71 10.5 +/- 0.71 0.080 / 0.210