PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/24-00:57:40
G02     8.4            71.8               11.9 +/-    0.41      12.5 +/-    0.41  0.020 / 0.030
G05     159.0          42.2               17.1 +/-    0.93      24.0 +/-    0.93  0.030 / 0.040
G06     42.9           35.7                9.6 +/-    1.22      15.1 +/-    1.22  0.080 / 0.360
G12     296.0          75.5               12.0 +/-    1.07      12.3 +/-    1.07  0.100 / 0.270
G19     82.0           22.0               11.5 +/-    1.20      24.0 +/-    1.20  0.070 / 0.110
G24     221.4          16.7               15.3 +/-    4.60      36.5 +/-    4.60  0.060 / 0.090
G25     314.7          36.9               11.9 +/-    1.41      18.2 +/-    1.41  0.040 / 0.070
G29     293.5          17.1               11.4 +/-    1.80      27.0 +/-    1.80  0.040 / 0.090