PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/06/26-00:57:50 G10 245.8 24.0 12.1 +/- 2.99 24.2 +/- 2.99 0.030 / 0.060 G13 58.6 31.8 9.7 +/- 0.77 16.4 +/- 0.77 0.040 / 0.060 G15 96.7 57.5 11.7 +/- 0.58 13.6 +/- 0.58 0.070 / 0.180 G16 302.7 14.9 5.5 +/- 3.55 13.6 +/- 3.55 0.080 / 0.180 G20 262.7 46.8 11.8 +/- 0.64 15.6 +/- 0.64 0.100 / 0.490 G21 327.3 55.9 -2.2 +/- 0.81 -2.6 +/- 0.81 0.120 / 0.410 G26 274.6 17.4 10.5 +/- 1.96 24.7 +/- 1.96 0.050 / 0.160 G29 160.6 55.1 11.5 +/- 0.57 13.7 +/- 0.57 0.060 / 0.150