PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/10/05-07:42:40 G07 337.6 59.4 4.7 +/- 1.00 5.4 +/- 1.00 0.080 / 0.190 G08 94.3 51.5 7.2 +/- 0.62 8.9 +/- 0.62 0.080 / 0.180 G09 185.7 71.4 8.0 +/- 1.43 8.4 +/- 1.43 0.080 / 0.080 G11 143.7 13.6 4.3 +/- 3.83 11.0 +/- 3.83 0.060 / 0.090 G23 156.4 42.4 7.6 +/- 0.93 10.6 +/- 0.93 0.040 / 0.050 G27 53.2 30.2 4.3 +/- 1.08 7.5 +/- 1.08 0.040 / 0.040 G28 238.5 31.0 4.9 +/- 1.03 8.5 +/- 1.03 0.030 / 0.060 G30 302.3 35.0 4.8 +/- 1.36 7.7 +/- 1.36 0.040 / 0.060