PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/16-01:12:30
G02     33.7           55.1               12.7 +/-    0.81      15.1 +/-    0.81  0.040 / 0.040
G05     136.6          62.3               16.3 +/-    0.62      18.2 +/-    0.62  0.050 / 0.050
G06     53.8           15.5               10.5 +/-    1.29      25.7 +/-    1.29  0.030 / 0.030
G12     198.5          67.9               13.6 +/-    0.79      14.6 +/-    0.79  0.020 / 0.040
G19     99.3           11.2               13.5 +/-    1.61      36.7 +/-    1.61  0.070 / 0.070
G25     298.2          52.6               12.4 +/-    0.93      15.1 +/-    0.93  0.110 / 0.060
G29     306.7          26.9               10.0 +/-    1.56      18.7 +/-    1.56  0.050 / 0.060