PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/25-19:27:30
G01     310.8          30.1               11.1 +/-    1.08      19.4 +/-    1.08  0.140 / 0.180
G10     100.8          43.9               13.8 +/-    0.84      18.8 +/-    0.84  0.090 / 0.130
G11     288.1          27.6               10.7 +/-    0.91      19.7 +/-    0.91  0.120 / 0.190
G14     345.4          68.8               11.0 +/-    0.44      11.7 +/-    0.44  0.110 / 0.250
G18     114.6          16.1               12.9 +/-    1.39      31.2 +/-    1.39  0.040 / 0.040
G22     307.8          21.8               12.3 +/-    1.11      26.0 +/-    1.11  0.030 / 0.030
G25     86.6           15.2               14.7 +/-    2.28      36.5 +/-    2.28  0.030 / 0.020
G31     172.3          58.8               15.5 +/-    0.57      17.8 +/-    0.57  0.040 / 0.030
G32     30.1           56.3               10.8 +/-    1.07      12.7 +/-    1.07  0.030 / 0.040