PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/03/16-22:27:50 G01 112.3 22.6 13.1 +/- 2.18 27.1 +/- 2.18 0.270 / 0.190 G07 96.9 62.5 12.7 +/- 0.81 14.1 +/- 0.81 0.100 / 0.160 G08 43.4 28.3 9.7 +/- 2.02 17.6 +/- 2.02 0.100 / 0.070 G09 176.5 19.5 14.3 +/- 2.00 31.8 +/- 2.00 0.050 / 0.050 G11 100.3 42.5 12.0 +/- 0.64 16.7 +/- 0.64 0.140 / 0.150 G13 313.8 24.5 9.9 +/- 1.01 19.5 +/- 1.01 0.120 / 0.110 G17 204.8 29.6 12.5 +/- 1.87 22.1 +/- 1.87 0.070 / 0.040 G28 308.2 60.0 9.8 +/- 0.83 11.1 +/- 0.83 0.040 / 0.030 G30 16.5 75.9 11.9 +/- 0.80 12.2 +/- 0.80 0.290 / 0.280