PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/04-17:28:10
G07     343.1          61.4               10.8 +/-    1.01      12.1 +/-    1.01  0.050 / 0.060
G08     91.5           53.9               11.9 +/-    0.78      14.3 +/-    0.78  0.050 / 0.050
G09     185.4          66.4               10.6 +/-    1.02      11.5 +/-    1.02  0.060 / 0.120
G11     142.3          17.3               12.6 +/-    2.14      29.7 +/-    2.14  0.080 / 0.110
G23     155.8          29.2               13.6 +/-    1.11      24.2 +/-    1.11  0.040 / 0.060
G27     48.8           27.3                8.5 +/-    1.15      15.7 +/-    1.15  0.040 / 0.050
G28     243.5          35.3               12.9 +/-    1.43      20.4 +/-    1.43  0.080 / 0.130
G30     308.5          40.9                9.5 +/-    1.69      13.7 +/-    1.69  0.070 / 0.130