PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/03/26-18:57:40 G07 344.7 61.8 10.1 +/- 0.42 11.3 +/- 0.42 0.040 / 0.040 G08 94.2 51.6 10.2 +/- 0.67 12.6 +/- 0.67 0.040 / 0.030 G09 191.6 73.0 13.5 +/- 0.46 14.1 +/- 0.46 0.040 / 0.030 G11 143.5 15.1 12.0 +/- 2.39 29.8 +/- 2.39 0.040 / 0.020 G16 46.9 10.2 7.8 +/- 3.11 21.8 +/- 3.11 0.070 / 0.070 G23 156.3 41.1 12.3 +/- 0.48 17.6 +/- 0.48 0.100 / 0.060 G27 55.4 32.4 7.9 +/- 0.93 13.2 +/- 0.93 0.080 / 0.230 G28 237.1 26.9 14.0 +/- 1.82 26.3 +/- 1.82 0.080 / 0.150 G30 303.5 36.8 11.3 +/- 1.22 17.3 +/- 1.22 0.060 / 0.080