PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/29-08:12:50
G07     41.5           69.5                4.6 +/-    0.46       4.8 +/-    0.46  0.040 / 0.040
G08     52.8           41.1                3.4 +/-    1.21       4.9 +/-    1.21  0.030 / 0.040
G09     174.2          35.7                6.6 +/-    1.81      10.4 +/-    1.81  0.150 / 0.170
G11     121.4          33.0                6.7 +/-    0.56      11.1 +/-    0.56  0.110 / 0.210
G17     198.7          12.1                2.3 +/-    3.49       6.2 +/-    3.49  0.040 / 0.040
G18     106.3          14.4                5.3 +/-    1.73      13.4 +/-    1.73  0.030 / 0.050
G23     161.1          12.9                4.9 +/-    1.38      12.7 +/-    1.38  0.160 / 0.320
G27     38.3           11.9                1.7 +/-    1.06       4.6 +/-    1.06  0.150 / 0.280
G28     268.4          49.6                5.5 +/-    0.52       7.0 +/-    0.52  0.080 / 0.220
G30     326.1          55.5                3.9 +/-    0.71       4.6 +/-    0.71  0.090 / 0.270