PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/01/12-03:28:10 G01 93.4 31.0 5.1 +/- 1.41 8.8 +/- 1.41 0.040 / 0.040 G07 122.8 47.8 5.3 +/- 0.69 6.8 +/- 0.69 0.030 / 0.050 G08 42.2 10.5 3.6 +/- 2.40 9.9 +/- 2.40 0.040 / 0.050 G11 73.8 41.3 3.9 +/- 1.30 5.5 +/- 1.30 0.040 / 0.040 G13 298.7 34.3 3.6 +/- 2.00 5.9 +/- 2.00 0.030 / 0.040 G17 212.7 50.8 6.5 +/- 0.80 8.1 +/- 0.80 0.030 / 0.040 G19 213.3 25.4 4.8 +/- 1.94 9.4 +/- 1.94 0.330 / 0.300 G28 345.2 61.8 2.9 +/- 0.64 3.3 +/- 0.64 0.130 / 0.260 G30 99.7 75.1 4.5 +/- 0.62 4.6 +/- 0.62 0.110 / 0.080