PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/24-20:57:40
G02     15.5           67.6                7.1 +/-    0.46       7.6 +/-    0.46  0.120 / 0.690
G05     155.5          48.2               10.6 +/-    1.18      13.7 +/-    1.18  0.130 / 0.530
G06     46.0           28.0                5.1 +/-    1.14       9.3 +/-    1.14  0.050 / 0.110
G12     263.4          79.2                8.7 +/-    1.13       8.9 +/-    1.13  0.070 / 0.110
G19     87.7           17.5                8.7 +/-    1.60      20.4 +/-    1.60  0.040 / 0.050
G24     218.3          12.9               13.1 +/-    4.40      34.4 +/-    4.40  0.030 / 0.060
G25     312.1          41.1                9.1 +/-    2.50      12.9 +/-    2.50  0.020 / 0.030
G29     296.9          18.9                9.8 +/-    0.78      22.2 +/-    0.78  0.020 / 0.030