PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/19-14:12:30
G02     318.0          81.3                7.1 +/-    0.78       7.2 +/-    0.78  0.050 / 0.150
G05     168.8          26.9               10.0 +/-    0.91      18.8 +/-    0.91  0.100 / 0.100
G06     40.1           47.3                5.9 +/-    0.71       7.7 +/-    0.71  0.020 / 0.040
G12     317.1          65.1                5.6 +/-    1.66       6.1 +/-    1.66  0.020 / 0.030
G17     83.5           12.3                9.4 +/-    2.34      24.9 +/-    2.34  0.100 / 0.270
G19     71.8           28.7                6.8 +/-    0.38      12.3 +/-    0.38  0.110 / 0.250
G24     234.0          26.6                8.3 +/-    1.61      15.6 +/-    1.61  0.120 / 0.160
G25     317.7          26.2                4.7 +/-    1.95       9.0 +/-    1.95  0.130 / 0.150
G29     284.6          10.2               -9.8 +/-    9.77     -27.2 +/-    9.77  0.070 / 0.140