PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/12-21:42:50
G01     266.8          40.3               13.9 +/-    1.31      20.1 +/-    1.31  0.040 / 0.070
G03     316.2          31.9               11.5 +/-    1.56      19.3 +/-    1.56  0.040 / 0.060
G10     131.4          15.1               13.0 +/-    1.09      32.3 +/-    1.09  0.070 / 0.080
G11     248.3          19.3               11.6 +/-    1.14      25.9 +/-    1.14  0.050 / 0.080
G14     47.1           48.1               10.9 +/-    0.48      14.0 +/-    0.48  0.100 / 0.410
G22     313.4          53.8                9.5 +/-    0.91      11.4 +/-    0.91  0.110 / 0.380
G25     49.4           15.7               11.3 +/-    0.83      27.6 +/-    0.83  0.030 / 0.030
G26     147.9          26.6               13.7 +/-    2.27      25.8 +/-    2.27  0.030 / 0.040
G31     50.8           73.4               12.1 +/-    0.32      12.6 +/-    0.32  0.070 / 0.100
G32     66.2           31.4               10.6 +/-    0.54      18.1 +/-    0.54  0.060 / 0.090