PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/25-00:12:30
G02     285.4          81.4                6.4 +/-    0.75       6.4 +/-    0.75  0.080 / 0.160
G05     167.6          24.2               12.1 +/-    1.81      24.1 +/-    1.81  0.080 / 0.160
G06     38.9           53.0                8.3 +/-    0.60      10.1 +/-    0.60  0.280 / 0.210
G12     319.9          57.5                7.8 +/-    0.96       9.1 +/-    0.96  0.150 / 0.250
G17     77.6           16.8                9.1 +/-    0.90      21.8 +/-    0.90  0.040 / 0.050
G19     65.1           33.1                8.1 +/-    0.92      13.3 +/-    0.92  0.040 / 0.040
G24     235.8          29.4               11.8 +/-    1.50      20.9 +/-    1.50  0.090 / 0.100
G25     317.4          20.1                5.7 +/-    2.04      12.4 +/-    2.04  0.090 / 0.090