PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/26-00:12:30
G02     298.7          81.6                9.9 +/-    1.12      10.0 +/-    1.12  0.030 / 0.040
G05     166.9          25.9               15.5 +/-    1.38      29.7 +/-    1.38  0.020 / 0.040
G06     39.0           51.1               10.0 +/-    0.73      12.4 +/-    0.73  0.070 / 0.150
G12     319.3          59.4               10.8 +/-    0.73      12.3 +/-    0.73  0.070 / 0.140
G17     79.1           15.8                9.6 +/-    2.70      23.3 +/-    2.70  0.110 / 0.140
G19     66.8           31.9               10.3 +/-    1.48      17.3 +/-    1.48  0.110 / 0.120
G24     234.2          28.2               13.7 +/-    1.47      24.9 +/-    1.47  0.070 / 0.100
G25     317.4          21.7                7.9 +/-    1.62      16.6 +/-    1.62  0.060 / 0.080