PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/09-22:43:10
G02     232.4          72.8               13.2 +/-    0.67      13.7 +/-    0.67  0.030 / 0.030
G05     172.5          13.1               19.1 +/-    2.88      49.6 +/-    2.88  0.040 / 0.040
G06     41.9           65.0               12.5 +/-    0.63      13.7 +/-    0.63  0.030 / 0.030
G12     320.4          44.9               10.5 +/-    1.73      14.2 +/-    1.73  0.030 / 0.040
G17     67.2           24.6               12.7 +/-    1.04      25.0 +/-    1.04  0.040 / 0.060
G19     52.8           40.7               12.9 +/-    1.14      18.5 +/-    1.14  0.060 / 0.060
G24     248.8          36.9               14.2 +/-    1.14      21.8 +/-    1.14  0.120 / 0.210