PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/09/10-11:28:10 G01 47.1 23.0 3.4 +/- 0.47 6.9 +/- 0.47 0.050 / 0.050 G06 175.9 27.7 5.5 +/- 1.55 10.2 +/- 1.55 0.040 / 0.050 G11 44.3 14.7 3.0 +/- 1.94 7.4 +/- 1.94 0.080 / 0.190 G13 246.7 29.9 7.6 +/- 0.98 13.3 +/- 0.98 0.100 / 0.160 G15 282.7 14.8 4.3 +/- 1.40 10.6 +/- 1.40 0.030 / 0.030 G17 312.1 78.1 5.5 +/- 0.97 5.6 +/- 0.97 0.030 / 0.030 G19 250.9 63.7 6.1 +/- 0.94 6.7 +/- 0.94 0.040 / 0.050 G28 45.8 56.4 3.6 +/- 0.64 4.3 +/- 0.64 0.040 / 0.050 G30 151.2 40.4 6.6 +/- 1.07 9.5 +/- 1.07 0.080 / 0.130