PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/10/10-11:28:00 G02 201.9 21.5 5.1 +/- 2.82 10.7 +/- 2.82 0.140 / 0.190 G06 167.9 58.5 7.6 +/- 0.54 8.7 +/- 0.54 0.180 / 0.170 G13 224.2 10.7 2.8 +/- 12.69 7.7 +/- 12.69 0.100 / 0.090 G17 28.3 55.3 5.2 +/- 1.01 6.1 +/- 1.01 0.080 / 0.090 G19 321.2 69.9 4.6 +/- 0.61 4.9 +/- 0.61 0.040 / 0.030 G24 305.3 34.7 3.9 +/- 0.89 6.2 +/- 0.89 0.050 / 0.030 G28 91.2 38.6 6.0 +/- 1.04 8.9 +/- 1.04 0.040 / 0.030 G30 158.1 12.7 4.7 +/- 1.47 12.3 +/- 1.47 0.030 / 0.030