PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/12/03-04:42:30 G01 75.7 32.1 5.2 +/- 1.20 8.6 +/- 1.20 0.030 / 0.020 G07 133.0 36.9 7.1 +/- 0.70 10.9 +/- 0.70 0.030 / 0.020 G11 60.7 38.6 5.9 +/- 0.73 8.8 +/- 0.73 0.080 / 0.210 G13 281.0 39.1 5.5 +/- 4.87 8.1 +/- 4.87 0.080 / 0.170 G15 305.4 15.2 2.0 +/- 2.28 5.0 +/- 2.28 0.060 / 0.060 G17 222.1 64.0 9.6 +/- 1.02 10.6 +/- 1.02 0.070 / 0.050 G19 218.6 38.6 8.5 +/- 1.12 12.6 +/- 1.12 0.030 / 0.040 G28 349.3 61.5 4.9 +/- 0.42 5.5 +/- 0.42 0.040 / 0.030 G30 126.6 72.2 8.0 +/- 0.51 8.3 +/- 0.51 0.050 / 0.080