PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/27-19:12:50
G01     246.1          32.6               11.2 +/-    1.13      18.6 +/-    1.13  0.050 / 0.050
G03     314.4          50.2                9.4 +/-    1.45      11.8 +/-    1.45  0.040 / 0.050
G11     235.4          10.3               11.8 +/-    1.01      32.6 +/-    1.01  0.120 / 0.190
G14     64.5           38.7               10.0 +/-    0.83      14.8 +/-    0.83  0.060 / 0.160
G16     162.0          21.8               13.3 +/-    1.98      27.9 +/-    1.98  0.040 / 0.040
G22     296.2          70.7               11.8 +/-    1.41      12.4 +/-    1.41  0.030 / 0.040
G23     290.4          22.7               10.1 +/-    1.99      20.9 +/-    1.99  0.070 / 0.200
G26     131.9          41.8               13.8 +/-    0.74      19.5 +/-    0.74  0.070 / 0.230
G31     40.2           53.8                9.2 +/-    0.70      11.2 +/-    0.70  0.090 / 0.120
G32     81.5           19.8                9.6 +/-    0.77      21.3 +/-    0.77  0.100 / 0.100