PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/07/26-13:58:00 G01 98.3 29.4 5.8 +/- 0.69 10.4 +/- 0.69 0.040 / 0.030 G07 118.2 51.6 6.3 +/- 0.55 7.8 +/- 0.55 0.040 / 0.030 G08 41.7 12.5 3.9 +/- 2.95 10.4 +/- 2.95 0.060 / 0.130 G11 76.6 41.6 6.7 +/- 0.44 9.5 +/- 0.44 0.060 / 0.120 G13 302.0 33.4 6.8 +/- 0.95 11.1 +/- 0.95 0.040 / 0.050 G17 209.7 46.8 7.5 +/- 1.41 9.9 +/- 1.41 0.050 / 0.050 G18 70.9 24.5 5.7 +/- 0.72 11.3 +/- 0.72 0.040 / 0.080 G19 212.1 17.8 5.4 +/- 2.18 12.6 +/- 2.18 0.040 / 0.080 G28 334.5 61.8 4.7 +/- 0.66 5.2 +/- 0.66 0.030 / 0.040 G30 64.7 80.2 4.7 +/- 0.93 4.8 +/- 0.93 0.030 / 0.060