PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/03-23:28:10
G02     264.5          80.1                9.4 +/-    0.49       9.5 +/-    0.49  0.230 / 0.360
G05     168.9          21.2               15.6 +/-    0.89      33.4 +/-    0.89  0.100 / 0.280
G06     39.1           55.8                9.7 +/-    0.81      11.4 +/-    0.81  0.030 / 0.030
G12     320.5          54.2               10.1 +/-    2.36      12.2 +/-    2.36  0.030 / 0.030
G17     74.8           18.9                9.5 +/-    0.97      21.4 +/-    0.97  0.050 / 0.080
G19     62.0           35.0                9.4 +/-    1.18      14.9 +/-    1.18  0.060 / 0.090
G24     239.0          31.5               12.9 +/-    1.16      21.9 +/-    1.16  0.030 / 0.040
G25     317.1          17.0                8.8 +/-    2.43      20.9 +/-    2.43  0.040 / 0.050