PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/10-15:28:00
G07     12.7           67.8                9.4 +/-    0.41      10.0 +/-    0.41  0.040 / 0.060
G08     65.5           49.5               10.5 +/-    0.85      13.4 +/-    0.85  0.040 / 0.050
G09     179.4          50.1               15.4 +/-    1.30      19.4 +/-    1.30  0.040 / 0.040
G11     131.3          26.8               11.9 +/-    1.00      22.3 +/-    1.00  0.030 / 0.040
G23     159.0          17.6               12.0 +/-    2.04      28.1 +/-    2.04  0.030 / 0.050
G27     40.8           17.7                8.4 +/-    0.77      19.5 +/-    0.77  0.030 / 0.060
G28     258.0          45.0               11.2 +/-    0.88      15.2 +/-    0.88  0.070 / 0.220
G30     319.6          50.0                9.9 +/-    0.87      12.4 +/-    0.87  0.060 / 0.220