PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/12/09-03:13:10 G01 108.9 22.6 10.0 +/- 1.00 20.7 +/- 1.00 0.040 / 0.040 G07 98.5 61.8 7.5 +/- 0.84 8.4 +/- 0.84 0.040 / 0.040 G08 42.2 23.1 3.9 +/- 0.73 8.0 +/- 0.73 0.040 / 0.040 G09 172.6 14.3 7.1 +/- 1.26 18.0 +/- 1.26 0.030 / 0.040 G11 100.4 44.6 8.5 +/- 0.60 11.5 +/- 0.60 0.060 / 0.200 G13 312.2 27.1 6.4 +/- 2.35 11.9 +/- 2.35 0.090 / 0.150 G17 202.8 33.7 8.9 +/- 0.97 14.5 +/- 0.97 0.060 / 0.070 G19 206.7 11.1 0.8 +/- 13.24 2.2 +/- 13.24 0.060 / 0.090 G28 293.9 55.0 5.7 +/- 1.14 6.8 +/- 1.14 0.040 / 0.070 G30 351.7 73.0 6.0 +/- 0.66 6.2 +/- 0.66 0.040 / 0.060