PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/09-21:28:00
G07     351.6          63.7               10.3 +/-    0.62      11.4 +/-    0.62  0.050 / 0.090
G08     83.4           53.9               11.2 +/-    0.88      13.5 +/-    0.88  0.050 / 0.090
G09     184.1          62.0               11.4 +/-    0.43      12.7 +/-    0.43  0.040 / 0.040
G11     140.7          19.7               12.0 +/-    1.66      26.6 +/-    1.66  0.040 / 0.040
G23     157.8          27.5               11.2 +/-    1.28      20.8 +/-    1.28  0.080 / 0.110
G27     45.4           24.0                9.2 +/-    2.53      18.4 +/-    2.53  0.120 / 0.210
G28     248.0          38.9               11.4 +/-    0.46      16.9 +/-    0.46  0.150 / 0.340
G30     314.0          45.9               10.0 +/-    0.67      13.3 +/-    0.67  0.140 / 0.290