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                4.6 +/-    0.70       4.9 +/-    0.70  0.050 / 0.080
G08     55.5           43.4                4.0 +/-    0.41       5.6 +/-    0.41  0.050 / 0.080
G09     178.8          42.9                9.1 +/-    1.62      12.7 +/-    1.62  0.030 / 0.030
G11     124.3          30.7                6.6 +/-    0.94      11.4 +/-    0.94  0.020 / 0.030
G17     198.9          10.3               -8.1 +/-   12.66     -22.3 +/-   12.66  0.040 / 0.050
G23     161.0          14.9                6.0 +/-    2.42      14.9 +/-    2.42  0.040 / 0.050
G27     38.1           11.4                2.0 +/-    1.12       5.3 +/-    1.12  0.140 / 0.250
G28     267.7          49.8                4.2 +/-    0.76       5.3 +/-    0.76  0.180 / 0.270
G30     326.7          55.6                3.6 +/-    0.78       4.2 +/-    0.78  0.130 / 0.340