PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/05/03-18:42:50 G01 97.6 29.1 10.1 +/- 0.85 17.9 +/- 0.85 0.040 / 0.050 G07 120.2 44.7 13.2 +/- 1.21 17.8 +/- 1.21 0.040 / 0.070 G08 41.6 13.0 6.8 +/- 4.07 17.8 +/- 4.07 0.040 / 0.090 G11 75.7 42.0 12.0 +/- 0.73 16.9 +/- 0.73 0.040 / 0.100 G13 301.6 34.2 11.0 +/- 1.49 17.7 +/- 1.49 0.090 / 0.160 G17 209.0 46.7 11.6 +/- 1.90 15.3 +/- 1.90 0.080 / 0.170 G18 69.1 24.0 10.1 +/- 0.85 20.3 +/- 0.85 0.070 / 0.090 G19 211.0 21.1 11.0 +/- 1.69 23.5 +/- 1.69 0.060 / 0.140 G28 325.0 60.9 9.9 +/- 1.69 11.2 +/- 1.69 0.040 / 0.060 G30 81.0 78.3 10.8 +/- 0.56 11.1 +/- 0.56 0.040 / 0.070