PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/25-19:58:10
G07     47.3           68.1               13.6 +/-    0.46      14.5 +/-    0.46  0.030 / 0.030
G08     55.5           43.3               13.0 +/-    1.39      18.0 +/-    1.39  0.030 / 0.030
G09     179.5          44.4               14.5 +/-    0.63      19.7 +/-    0.63  0.100 / 0.090
G11     123.5          32.0               15.4 +/-    1.27      25.9 +/-    1.27  0.090 / 0.100
G18     107.0          13.3               15.4 +/-    1.66      39.8 +/-    1.66  0.080 / 0.050
G23     160.8          14.8               16.9 +/-    1.85      42.3 +/-    1.85  0.070 / 0.050
G27     39.1           14.4                9.8 +/-    2.52      24.8 +/-    2.52  0.160 / 0.280
G28     262.8          45.7               15.8 +/-    2.84      21.1 +/-    2.84  0.120 / 0.300
G30     326.3          55.8               12.6 +/-    0.38      14.9 +/-    0.38  0.040 / 0.040