PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/16-20:27:50
G01     233.7          23.7               11.3 +/-    1.37      22.8 +/-    1.37  0.030 / 0.040
G03     303.5          62.1                9.0 +/-    1.07      10.0 +/-    1.07  0.030 / 0.030
G14     77.9           30.4                9.3 +/-    0.89      16.1 +/-    0.89  0.070 / 0.130
G16     155.8          34.6               12.4 +/-    0.76      19.8 +/-    0.76  0.070 / 0.140
G22     248.8          75.7                9.4 +/-    0.73       9.6 +/-    0.73  0.100 / 0.190
G23     300.4          31.0                8.6 +/-    1.46      14.8 +/-    1.46  0.120 / 0.260
G26     115.0          50.9               11.1 +/-    0.63      13.8 +/-    0.63  0.040 / 0.060
G31     41.9           41.2                7.5 +/-    0.66      10.8 +/-    0.66  0.040 / 0.060
G32     92.2           11.8               10.0 +/-    2.23      26.7 +/-    2.23  0.080 / 0.350