PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/03/13-22:28:10 G01 88.7 31.8 11.9 +/- 0.95 20.0 +/- 0.95 0.050 / 0.060 G07 127.0 39.8 12.7 +/- 0.34 18.5 +/- 0.34 0.040 / 0.070 G11 65.7 38.7 9.8 +/- 1.56 14.6 +/- 1.56 0.080 / 0.100 G13 292.9 37.0 7.6 +/- 2.12 11.6 +/- 2.12 0.080 / 0.110 G15 314.3 10.7 -6.0 +/- 16.87 -16.6 +/- 16.87 0.060 / 0.040 G17 214.1 56.4 13.8 +/- 0.68 16.2 +/- 0.68 0.050 / 0.050 G18 59.8 22.1 8.6 +/- 1.90 18.0 +/- 1.90 0.110 / 0.150 G19 214.5 27.7 14.3 +/- 1.68 26.4 +/- 1.68 0.150 / 0.100 G28 342.8 61.7 10.5 +/- 0.62 11.7 +/- 0.62 0.080 / 0.200 G30 108.3 75.1 12.5 +/- 1.25 12.9 +/- 1.25 0.070 / 0.220