PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/09/22-02:58:00 G01 222.2 14.7 3.2 +/- 17.98 8.1 +/- 17.98 0.400 / 0.440 G03 281.9 68.7 4.1 +/- 0.59 4.4 +/- 0.59 0.290 / 0.400 G14 87.5 24.7 5.0 +/- 2.81 9.9 +/- 2.81 0.120 / 0.190 G16 141.3 47.9 6.2 +/- 0.47 8.0 +/- 0.47 0.170 / 0.220 G22 215.4 68.5 4.2 +/- 0.99 4.5 +/- 0.99 0.040 / 0.040 G23 310.5 40.9 3.8 +/- 1.11 5.5 +/- 1.11 0.040 / 0.040 G26 91.0 54.2 3.8 +/- 0.48 4.6 +/- 0.48 0.040 / 0.070 G31 47.0 28.2 1.5 +/- 2.08 2.7 +/- 2.08 0.040 / 0.070