PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/02/10-01:57:40 G01 78.1 33.3 4.9 +/- 0.94 8.0 +/- 0.94 0.030 / 0.050 G07 133.6 36.7 5.7 +/- 1.34 8.8 +/- 1.34 0.040 / 0.050 G11 60.4 36.4 3.5 +/- 0.75 5.4 +/- 0.75 0.030 / 0.050 G13 283.2 37.3 5.8 +/- 1.33 8.8 +/- 1.33 0.040 / 0.060 G15 307.1 14.3 2.6 +/- 1.49 6.5 +/- 1.49 0.070 / 0.270 G17 224.5 62.2 7.1 +/- 1.01 7.9 +/- 1.01 0.100 / 0.290 G19 220.1 36.9 6.9 +/- 2.00 10.6 +/- 2.00 0.040 / 0.080 G28 10.0 60.3 3.0 +/- 0.61 3.4 +/- 0.61 0.040 / 0.070 G30 128.4 62.9 5.1 +/- 0.82 5.7 +/- 0.82 0.040 / 0.100