PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/07-15:12:30
G07     345.9          62.3               12.4 +/-    0.61      13.8 +/-    0.61  0.040 / 0.040
G08     86.1           53.2               12.0 +/-    0.74      14.5 +/-    0.74  0.040 / 0.040
G09     183.0          64.0               13.1 +/-    0.14      14.4 +/-    0.14  0.030 / 0.040
G11     140.6          18.5               10.9 +/-    1.47      24.9 +/-    1.47  0.040 / 0.040
G23     156.9          29.8               11.9 +/-    0.84      21.0 +/-    0.84  0.070 / 0.100
G27     47.9           26.7                8.7 +/-    1.27      16.3 +/-    1.27  0.100 / 0.080
G28     244.7          36.1               14.4 +/-    2.58      22.3 +/-    2.58  0.090 / 0.090
G30     309.0          41.0               12.6 +/-    1.11      18.0 +/-    1.11  0.070 / 0.100