PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/15-08:58:10
G07     25.7           69.0                3.5 +/-    0.36       3.7 +/-    0.36  0.040 / 0.050
G08     58.0           44.9                2.7 +/-    0.72       3.6 +/-    0.72  0.050 / 0.060
G09     175.1          42.0                5.9 +/-    1.22       8.2 +/-    1.22  0.050 / 0.080
G11     126.4          29.8                5.6 +/-    1.00       9.9 +/-    1.00  0.040 / 0.080
G18     111.0          11.8                3.7 +/-    1.38       9.8 +/-    1.38  0.020 / 0.040
G23     160.8          17.5                3.5 +/-    1.72       8.2 +/-    1.72  0.030 / 0.030
G27     39.8           15.8                1.8 +/-    0.66       4.3 +/-    0.66  0.100 / 0.210
G28     261.7          46.6                3.9 +/-    1.57       5.1 +/-    1.57  0.090 / 0.270
G30     321.4          51.5                3.5 +/-    0.91       4.4 +/-    0.91  0.080 / 0.400