PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/14-21:27:50
G01     271.0          40.9                9.9 +/-    0.84      14.2 +/-    0.84  0.050 / 0.080
G03     315.7          29.2                7.4 +/-    1.32      13.2 +/-    1.32  0.040 / 0.050
G10     129.7          17.7               10.9 +/-    0.98      25.3 +/-    0.98  0.060 / 0.090
G11     251.2          20.8               11.4 +/-    2.62      24.6 +/-    2.62  0.060 / 0.080
G14     43.4           50.0                6.8 +/-    0.98       8.6 +/-    0.98  0.120 / 0.250
G22     314.1          50.9                7.6 +/-    0.75       9.5 +/-    0.75  0.080 / 0.210
G25     52.2           16.7                7.0 +/-    1.51      16.8 +/-    1.51  0.030 / 0.030
G26     149.8          24.0               12.3 +/-    1.75      24.6 +/-    1.75  0.020 / 0.030
G31     57.8           76.2                8.9 +/-    0.64       9.1 +/-    0.64  0.050 / 0.080
G32     63.5           33.3                6.9 +/-    0.54      11.2 +/-    0.54  0.060 / 0.090