PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/09/28-12:28:10 G02 214.1 55.8 8.1 +/- 1.06 9.6 +/- 1.06 0.050 / 0.080 G06 65.5 75.8 6.3 +/- 0.69 6.5 +/- 0.69 0.050 / 0.080 G12 317.3 34.4 4.2 +/- 1.10 6.7 +/- 1.10 0.040 / 0.080 G17 53.3 35.5 3.5 +/- 0.88 5.5 +/- 0.88 0.060 / 0.090 G19 37.4 49.6 3.5 +/- 0.54 4.5 +/- 0.54 0.030 / 0.050 G24 271.2 41.4 7.1 +/- 0.76 10.1 +/- 0.76 0.030 / 0.030 G28 118.1 22.6 4.5 +/- 2.00 9.3 +/- 2.00 0.040 / 0.060