PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/10/14-06:28:10 G01 123.0 13.2 3.5 +/- 2.03 9.1 +/- 2.03 0.040 / 0.030 G07 63.9 68.5 5.9 +/- 0.57 6.3 +/- 0.57 0.040 / 0.040 G08 49.2 38.4 3.5 +/- 0.66 5.3 +/- 0.66 0.120 / 0.450 G09 176.2 31.8 7.5 +/- 0.78 12.7 +/- 0.78 0.110 / 0.580 G11 117.9 37.8 6.8 +/- 1.07 10.2 +/- 1.07 0.030 / 0.030 G13 319.8 15.2 0.8 +/- 2.06 1.9 +/- 2.06 0.030 / 0.040 G17 199.9 16.4 4.9 +/- 1.93 11.7 +/- 1.93 0.180 / 0.170 G28 271.9 48.2 6.7 +/- 1.43 8.6 +/- 1.43 0.180 / 0.110 G30 332.1 60.9 4.7 +/- 0.63 5.3 +/- 0.63 0.060 / 0.090