PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/07-01:12:20
G02     41.6           47.5                9.8 +/-    1.06      12.7 +/-    1.06  0.050 / 0.050
G05     113.9          68.1               11.3 +/-    0.68      12.1 +/-    0.68  0.050 / 0.050
G06     58.0           11.0                8.2 +/-    2.01      22.5 +/-    2.01  0.030 / 0.040
G12     194.5          59.9               13.3 +/-    0.31      15.1 +/-    0.31  0.030 / 0.040
G25     280.0          58.0               17.5 +/-    1.42      20.2 +/-    1.42  0.110 / 0.160
G29     315.6          38.2                9.8 +/-    0.76      14.7 +/-    0.76  0.240 / 0.270