PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/03/09-02:12:20 G02 200.2 26.5 9.2 +/- 1.90 17.4 +/- 1.90 0.080 / 0.080 G06 170.8 57.4 8.4 +/- 0.53 9.7 +/- 0.53 0.050 / 0.080 G13 224.9 10.5 9.3 +/- 3.54 25.6 +/- 3.54 0.040 / 0.040 G17 23.0 58.7 5.2 +/- 0.69 5.9 +/- 0.69 0.040 / 0.040 G19 336.0 69.9 5.0 +/- 0.35 5.3 +/- 0.35 0.040 / 0.030 G24 307.6 31.9 4.8 +/- 1.44 8.1 +/- 1.44 0.030 / 0.040 G28 92.9 36.9 5.7 +/- 1.03 8.7 +/- 1.03 0.200 / 0.130