PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/12/09-02:43:10 G01 120.9 14.4 7.9 +/- 3.18 20.0 +/- 3.18 0.030 / 0.030 G07 66.1 68.7 5.8 +/- 0.39 6.2 +/- 0.39 0.040 / 0.040 G08 47.0 34.7 4.1 +/- 0.80 6.5 +/- 0.80 0.030 / 0.050 G09 174.1 27.4 8.4 +/- 1.73 15.6 +/- 1.73 0.030 / 0.040 G11 118.1 38.9 9.6 +/- 0.98 14.2 +/- 0.98 0.110 / 0.380 G13 319.1 16.8 1.2 +/- 1.93 2.7 +/- 1.93 0.090 / 0.300 G17 199.6 19.8 5.4 +/- 2.31 11.9 +/- 2.31 0.070 / 0.110 G28 273.5 48.4 4.5 +/- 1.57 5.8 +/- 1.57 0.070 / 0.110 G30 332.1 61.3 4.4 +/- 0.66 5.0 +/- 0.66 0.060 / 0.070