PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/24-16:27:40
G02     62.9           29.7               12.4 +/-    0.79      21.8 +/-    0.79  0.060 / 0.120
G05     55.6           60.7               13.2 +/-    0.85      14.9 +/-    0.85  0.120 / 0.130
G12     185.2          29.6               13.2 +/-    1.47      23.2 +/-    1.47  0.080 / 0.320
G13     127.0          17.5               16.0 +/-    2.14      37.5 +/-    2.14  0.070 / 0.360
G15     161.3          15.0               17.8 +/-    2.71      44.2 +/-    2.71  0.040 / 0.040
G20     210.3          63.2               16.1 +/-    0.48      17.9 +/-    0.48  0.040 / 0.040
G21     275.0          21.8               14.7 +/-    1.75      31.0 +/-    1.75  0.030 / 0.050
G25     229.3          48.8               16.6 +/-    0.75      21.3 +/-    0.75  0.030 / 0.040
G29     336.9          63.5               13.3 +/-    0.54      14.7 +/-    0.54  0.040 / 0.070