PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/11/16-09:12:30 G02 215.0 60.8 6.9 +/- 0.48 7.8 +/- 0.48 0.090 / 0.080 G06 59.7 74.5 6.7 +/- 0.75 7.0 +/- 0.75 0.080 / 0.090 G12 318.8 38.7 2.1 +/- 1.11 3.1 +/- 1.11 0.040 / 0.070 G17 56.2 32.7 3.0 +/- 0.43 5.0 +/- 0.43 0.040 / 0.070 G19 40.1 48.0 4.1 +/- 0.30 5.3 +/- 0.30 0.040 / 0.050 G24 268.3 41.1 6.3 +/- 1.10 9.1 +/- 1.10 0.040 / 0.050 G28 119.4 21.9 7.1 +/- 1.25 14.8 +/- 1.25 0.040 / 0.050