PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/12/08-02:12:40 G07 330.6 57.4 4.7 +/- 0.69 5.5 +/- 0.69 0.060 / 0.070 G08 100.9 50.2 9.0 +/- 0.47 11.3 +/- 0.47 0.060 / 0.060 G09 188.3 75.7 8.6 +/- 0.87 8.9 +/- 0.87 0.040 / 0.040 G11 146.6 11.7 10.0 +/- 9.42 27.0 +/- 9.42 0.030 / 0.040 G16 45.7 10.6 4.5 +/- 2.07 12.4 +/- 2.07 0.150 / 0.140 G23 155.1 48.0 10.3 +/- 0.59 13.3 +/- 0.59 0.120 / 0.140 G27 61.2 35.1 6.3 +/- 0.97 10.0 +/- 0.97 0.140 / 0.330 G28 233.8 24.6 6.8 +/- 1.73 13.4 +/- 1.73 0.180 / 0.510 G30 298.1 31.4 4.9 +/- 1.90 8.3 +/- 1.90 0.040 / 0.060