PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/16-20:42:40
G01     293.6          39.4               12.0 +/-    5.16      17.7 +/-    5.16  0.050 / 0.080
G03     311.1          15.2                6.8 +/-    2.14      16.9 +/-    2.14  0.050 / 0.070
G10     117.9          31.1                9.3 +/-    1.07      15.9 +/-    1.07  0.020 / 0.020
G11     268.3          26.8                8.7 +/-    1.15      16.3 +/-    1.15  0.020 / 0.020
G14     21.0           60.0                6.6 +/-    1.16       7.5 +/-    1.16  0.060 / 0.150
G22     313.2          35.8                7.1 +/-    1.56      11.1 +/-    1.56  0.090 / 0.130
G25     68.9           18.8                7.0 +/-    1.15      16.0 +/-    1.15  0.040 / 0.040
G26     159.3          10.7               -5.3 +/-   41.24     -14.7 +/-   41.24  0.040 / 0.050
G31     148.5          77.0                9.3 +/-    1.01       9.5 +/-    1.01  0.030 / 0.050
G32     48.2           44.3                7.0 +/-    0.92       9.5 +/-    0.92  0.040 / 0.040