PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/29-19:27:40
G02     246.7          76.5                9.0 +/-    0.44       9.2 +/-    0.44  0.320 / 0.420
G05     170.7          17.7               10.3 +/-    1.51      23.9 +/-    1.51  0.100 / 0.290
G06     40.0           57.1                7.7 +/-    0.44       8.9 +/-    0.44  0.030 / 0.030
G12     320.9          51.5                7.7 +/-    1.31       9.6 +/-    1.31  0.030 / 0.050
G17     70.8           22.9                7.4 +/-    1.26      15.2 +/-    1.26  0.120 / 0.120
G19     59.1           36.5                7.7 +/-    0.54      11.9 +/-    0.54  0.090 / 0.120
G24     243.7          33.7               10.4 +/-    3.04      16.9 +/-    3.04  0.100 / 0.130
G25     316.5          12.9               -1.1 +/-   29.42      -3.0 +/-   29.42  0.070 / 0.160