PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/03/22-19:12:40 G07 343.3 61.4 11.3 +/- 0.44 12.7 +/- 0.44 0.030 / 0.040 G08 95.1 51.4 12.1 +/- 0.49 15.1 +/- 0.49 0.040 / 0.040 G09 192.3 73.6 13.7 +/- 0.74 14.3 +/- 0.74 0.070 / 0.200 G11 143.9 14.7 12.1 +/- 2.98 30.5 +/- 2.98 0.090 / 0.210 G16 46.6 10.9 9.2 +/- 2.54 25.3 +/- 2.54 0.030 / 0.030 G23 156.2 41.9 12.3 +/- 0.72 17.3 +/- 0.72 0.030 / 0.030 G27 56.1 32.8 10.1 +/- 0.94 16.8 +/- 0.94 0.070 / 0.080 G28 236.6 26.5 12.9 +/- 1.86 24.5 +/- 1.86 0.060 / 0.080 G30 302.9 36.3 11.6 +/- 1.39 18.0 +/- 1.39 0.080 / 0.090