PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/17-03:58:10
G07     344.7          61.9                4.8 +/-    0.78       5.4 +/-    0.78  0.060 / 0.080
G08     85.3           51.4                6.1 +/-    0.47       7.6 +/-    0.47  0.060 / 0.090
G09     178.8          64.6                6.6 +/-    0.94       7.2 +/-    0.94  0.040 / 0.050
G11     140.6          17.5                6.5 +/-    1.27      15.2 +/-    1.27  0.040 / 0.040
G23     158.1          38.1                7.7 +/-    1.31      11.6 +/-    1.31  0.060 / 0.070
G27     51.8           30.3                5.9 +/-    0.62      10.4 +/-    0.62  0.060 / 0.080
G28     241.1          32.1                6.2 +/-    0.95      10.4 +/-    0.95  0.060 / 0.080
G30     305.3          37.4                4.0 +/-    1.21       6.1 +/-    1.21  0.060 / 0.090