PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/14-05:57:30
G07     35.9           69.1                4.7 +/-    0.82       5.0 +/-    0.82  0.120 / 0.120
G08     55.5           43.4                5.6 +/-    1.05       7.7 +/-    1.05  0.110 / 0.110
G09     178.8          42.9                8.8 +/-    0.82      12.3 +/-    0.82  0.030 / 0.030
G11     124.3          30.7                8.3 +/-    1.42      14.3 +/-    1.42  0.030 / 0.030
G23     161.0          14.9                6.3 +/-    0.93      15.8 +/-    0.93  0.040 / 0.040
G27     38.1           11.4                2.8 +/-    1.96       7.7 +/-    1.96  0.050 / 0.040
G28     267.7          49.8                5.1 +/-    3.87       6.5 +/-    3.87  0.060 / 0.050
G30     326.7          55.6                4.6 +/-    0.38       5.4 +/-    0.38  0.060 / 0.060