PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/14-00:27:20
G02     35.3           53.1               11.0 +/-    0.43      13.4 +/-    0.43  0.050 / 0.050
G05     132.5          64.0               14.0 +/-    0.58      15.4 +/-    0.58  0.040 / 0.060
G06     53.9           15.9                8.3 +/-    1.15      20.1 +/-    1.15  0.030 / 0.030
G12     201.7          67.8               11.7 +/-    0.62      12.6 +/-    0.62  0.020 / 0.050
G25     293.6          54.8               10.7 +/-    0.90      12.8 +/-    0.90  0.050 / 0.060
G29     310.2          32.2               10.2 +/-    0.60      17.1 +/-    0.60  0.040 / 0.060