PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/11/22-04:12:40 G01 113.5 19.8 7.9 +/- 1.58 17.6 +/- 1.58 0.060 / 0.080 G07 89.2 64.5 4.4 +/- 0.46 4.8 +/- 0.46 0.070 / 0.080 G08 43.5 27.9 2.6 +/- 0.99 4.8 +/- 0.99 0.030 / 0.030 G09 173.8 19.6 7.4 +/- 2.31 16.5 +/- 2.31 0.030 / 0.030 G11 106.3 43.0 5.6 +/- 0.59 7.7 +/- 0.59 0.040 / 0.070 G13 315.2 23.6 0.7 +/- 2.42 1.4 +/- 2.42 0.040 / 0.080 G17 201.6 28.3 1.6 +/- 0.79 2.9 +/- 0.79 0.050 / 0.090 G28 286.6 53.2 4.0 +/- 0.70 4.8 +/- 0.70 0.040 / 0.080 G30 344.0 69.2 2.2 +/- 0.99 2.3 +/- 0.99 0.040 / 0.050