PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/09-00:12:30
G02     19.1           65.8                8.0 +/-    0.45       8.7 +/-    0.45  0.060 / 0.090
G05     153.8          49.6               13.8 +/-    1.23      17.4 +/-    1.23  0.060 / 0.090
G06     46.0           28.6                7.4 +/-    0.91      13.4 +/-    0.91  0.040 / 0.050
G12     259.6          78.9                9.0 +/-    0.76       9.2 +/-    0.76  0.040 / 0.050
G19     88.5           17.4               10.7 +/-    1.71      25.1 +/-    1.71  0.100 / 0.320
G24     216.7          11.8               13.8 +/-    2.44      37.0 +/-    2.44  0.140 / 0.240
G25     311.0          43.1                8.5 +/-    1.62      11.7 +/-    1.62  0.030 / 0.030
G29     298.7          21.3               10.6 +/-    1.83      22.7 +/-    1.83  0.030 / 0.030