PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/05-14:57:50
G02     275.7          80.9               10.9 +/-    1.01      11.0 +/-    1.01  0.080 / 0.200
G05     171.4          21.2               12.0 +/-    1.95      25.7 +/-    1.95  0.060 / 0.190
G06     39.7           52.1                8.3 +/-    0.39      10.3 +/-    0.39  0.050 / 0.050
G12     320.2          59.7               11.5 +/-    0.93      13.1 +/-    0.93  0.030 / 0.050
G17     79.1           15.4                8.2 +/-    1.01      20.1 +/-    1.01  0.110 / 0.190
G19     66.8           32.0                9.6 +/-    1.43      16.1 +/-    1.43  0.120 / 0.190
G24     238.9          30.2               11.8 +/-    1.81      20.5 +/-    1.81  0.060 / 0.150
G25     317.8          21.7                6.8 +/-    2.25      14.5 +/-    2.25  0.070 / 0.180