PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/24-19:28:10
G01     311.8          29.1               10.8 +/-    1.14      19.3 +/-    1.14  0.100 / 0.210
G10     99.1           44.8               14.6 +/-    0.73      19.7 +/-    0.73  0.090 / 0.210
G11     289.6          27.4               10.7 +/-    1.51      19.9 +/-    1.51  0.030 / 0.040
G14     341.8          69.3               13.1 +/-    0.41      13.9 +/-    0.41  0.030 / 0.030
G18     113.7          17.1               14.2 +/-    1.86      33.5 +/-    1.86  0.340 / 0.350
G22     307.2          20.7               10.6 +/-    2.66      22.9 +/-    2.66  0.110 / 0.190
G25     88.0           14.7               14.8 +/-    2.88      37.1 +/-    2.88  0.030 / 0.040
G31     173.0          57.2               16.7 +/-    0.50      19.5 +/-    0.50  0.030 / 0.030
G32     28.4           57.3               12.2 +/-    0.98      14.2 +/-    0.98  0.040 / 0.030