PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/03/07-02:13:10 G02 199.7 23.3 9.7 +/- 2.81 19.7 +/- 2.81 0.060 / 0.080 G06 172.4 53.7 8.2 +/- 0.68 10.0 +/- 0.68 0.070 / 0.080 G13 227.3 12.6 7.4 +/- 2.46 19.4 +/- 2.46 0.040 / 0.040 G17 19.2 61.1 5.5 +/- 0.53 6.1 +/- 0.53 0.030 / 0.040 G19 325.8 70.9 5.2 +/- 0.54 5.5 +/- 0.54 0.030 / 0.030 G24 310.0 29.6 5.1 +/- 0.75 8.9 +/- 0.75 0.040 / 0.030 G28 89.4 38.8 6.8 +/- 1.03 10.2 +/- 1.03 0.060 / 0.270 G30 156.1 11.0 5.5 +/- 3.45 15.1 +/- 3.45 0.160 / 0.200