PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/28-19:12:40
G01     311.7          29.2               10.2 +/-    0.63      18.2 +/-    0.63  0.090 / 0.200
G10     99.3           44.7               12.3 +/-    0.88      16.6 +/-    0.88  0.100 / 0.190
G11     289.5          27.3               11.0 +/-    1.00      20.3 +/-    1.00  0.030 / 0.150
G14     341.9          69.3               11.5 +/-    0.42      12.2 +/-    0.42  0.030 / 0.040
G18     113.8          17.0               12.6 +/-    1.30      29.9 +/-    1.30  0.090 / 0.190
G22     307.3          20.9               10.5 +/-    2.53      22.6 +/-    2.53  0.100 / 0.200
G25     87.9           14.7               12.5 +/-    2.69      31.4 +/-    2.69  0.030 / 0.030
G31     172.7          57.5               13.5 +/-    0.74      15.7 +/-    0.74  0.030 / 0.030
G32     28.8           57.1               10.9 +/-    1.21      12.7 +/-    1.21  0.030 / 0.020