PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/09-21:58:00
G01     236.1          26.2               10.6 +/-    0.98      20.1 +/-    0.98  0.040 / 0.030
G03     308.8          57.5                5.8 +/-    1.00       6.7 +/-    1.00  0.040 / 0.040
G14     75.2           31.4                8.7 +/-    1.18      14.8 +/-    1.18  0.080 / 0.170
G16     155.9          31.8               12.4 +/-    1.56      21.0 +/-    1.56  0.090 / 0.130
G22     265.6          75.0                8.1 +/-    0.70       8.3 +/-    0.70  0.080 / 0.170
G23     296.8          26.9                6.7 +/-    0.95      12.5 +/-    0.95  0.080 / 0.150
G26     122.4          48.8               10.5 +/-    0.78      13.4 +/-    0.78  0.040 / 0.050
G31     40.6           47.2                6.1 +/-    0.45       7.9 +/-    0.45  0.050 / 0.040
G32     89.1           14.4                8.8 +/-    1.27      22.2 +/-    1.27  0.130 / 0.160