PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/29-08:13:00
G07     41.5           69.5                5.3 +/-    0.81       5.6 +/-    0.81  0.030 / 0.030
G08     52.8           41.1                3.5 +/-    1.30       5.0 +/-    1.30  0.030 / 0.030
G09     174.2          35.7                6.6 +/-    1.46      10.4 +/-    1.46  0.030 / 0.040
G11     121.4          33.0                6.4 +/-    1.19      10.5 +/-    1.19  0.030 / 0.030
G17     198.7          12.1                2.3 +/-   10.20       6.2 +/-   10.20  0.270 / 0.180
G18     106.3          14.4                4.6 +/-    2.26      11.6 +/-    2.26  0.160 / 0.280
G23     161.1          12.9                3.5 +/-    3.00       9.2 +/-    3.00  0.120 / 0.260
G27     38.3           11.9                2.7 +/-    2.47       7.2 +/-    2.47  0.140 / 0.210
G28     268.4          49.6                6.2 +/-    3.29       7.9 +/-    3.29  0.150 / 0.390
G30     326.1          55.5                3.9 +/-    0.75       4.6 +/-    0.75  0.140 / 0.310