PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/12/11-02:58:00 G01 112.2 20.6 8.8 +/- 0.99 19.1 +/- 0.99 0.030 / 0.030 G07 91.4 64.1 6.1 +/- 1.01 6.7 +/- 1.01 0.030 / 0.030 G08 43.0 26.1 4.0 +/- 2.99 7.5 +/- 2.99 0.160 / 0.140 G09 173.0 17.5 6.7 +/- 1.68 15.8 +/- 1.68 0.150 / 0.110 G11 105.5 43.6 8.0 +/- 1.03 10.9 +/- 1.03 0.080 / 0.080 G13 314.5 24.6 3.3 +/- 1.33 6.6 +/- 1.33 0.090 / 0.120 G17 201.7 30.0 6.7 +/- 1.31 11.6 +/- 1.31 0.050 / 0.080 G28 288.1 53.5 5.2 +/- 2.22 6.3 +/- 2.22 0.040 / 0.060 G30 345.0 70.0 4.8 +/- 0.72 5.0 +/- 0.72 0.100 / 0.120