PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/07/19-03:42:40 G08 310.9705 18.5414 6.7170 +/- 2.6165 15.3175 +/- 2.6165 0.030 / 0.040 G10 323.7637 58.3945 6.7364 +/- 0.9224 7.7619 +/- 0.9224 0.040 / 0.040 G14 216.4119 29.4614 9.8038 +/- 2.2735 17.3634 +/- 2.2735 0.040 / 0.050 G15 46.1630 16.4334 4.1901 +/- 0.5375 10.0638 +/- 0.5375 0.030 / 0.050 G18 29.1416 61.8422 6.3416 +/- 0.7938 7.0906 +/- 0.7938 0.060 / 0.070 G21 130.0526 60.5548 7.2084 +/- 0.9405 8.1471 +/- 0.9405 0.080 / 0.080 G24 79.4790 30.5339 6.5622 +/- 0.4490 11.3654 +/- 0.4490 0.040 / 0.040 G27 277.2778 37.9892 8.2589 +/- 1.2226 12.4244 +/- 1.2226 0.030 / 0.050 G32 220.7772 48.4911 7.7441 +/- 0.8560 9.9534 +/- 0.8560 0.070 / 0.100