PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/03/12-01:27:40 G02 203.4 37.3 8.7 +/- 0.88 13.2 +/- 0.88 0.060 / 0.100 G06 168.7 67.3 7.5 +/- 0.59 8.0 +/- 0.59 0.080 / 0.080 G12 307.4 14.4 4.5 +/- 3.09 11.5 +/- 3.09 0.080 / 0.130 G17 39.1 46.3 6.6 +/- 0.86 8.7 +/- 0.86 0.070 / 0.130 G19 3.8 64.4 6.8 +/- 0.86 7.4 +/- 0.86 0.040 / 0.030 G24 293.7 40.3 8.0 +/- 11.24 11.6 +/- 11.24 0.040 / 0.030 G28 102.2 33.2 8.6 +/- 1.11 14.1 +/- 1.11 0.170 / 0.300