PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/03/08-01:27:30 G02 201.4 29.7 11.0 +/- 1.43 19.4 +/- 1.43 0.070 / 0.070 G06 173.7 58.7 9.9 +/- 0.66 11.4 +/- 0.66 0.080 / 0.100 G17 32.5 51.8 7.8 +/- 1.28 9.7 +/- 1.28 0.060 / 0.090 G19 346.1 68.4 7.3 +/- 0.72 7.8 +/- 0.72 0.060 / 0.070 G24 301.7 36.7 6.8 +/- 2.11 10.4 +/- 2.11 0.040 / 0.030 G28 94.6 37.8 9.9 +/- 1.23 14.9 +/- 1.23 0.040 / 0.030