PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/16-21:27:50
G01     236.6          26.6                6.7 +/-    1.17      12.7 +/-    1.17  0.100 / 0.110
G03     309.2          57.2                4.8 +/-    1.88       5.6 +/-    1.88  0.120 / 0.220
G14     74.6           31.7                5.8 +/-    1.26       9.8 +/-    1.26  0.100 / 0.120
G16     156.5          31.1                7.5 +/-    1.24      12.9 +/-    1.24  0.060 / 0.110
G18     208.4          15.1                7.2 +/-    2.50      17.9 +/-    2.50  0.080 / 0.150
G22     267.5          75.0                6.2 +/-    1.08       6.4 +/-    1.08  0.070 / 0.140
G23     296.4          26.5                6.5 +/-    2.61      12.4 +/-    2.61  0.040 / 0.050
G26     123.7          48.3                7.7 +/-    0.67       9.9 +/-    0.67  0.040 / 0.040
G31     40.4           48.2                5.3 +/-    0.60       6.8 +/-    0.60  0.030 / 0.030
G32     88.5           14.9                6.5 +/-    1.39      16.3 +/-    1.39  0.030 / 0.030