PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/25-19:42:30
G01     236.8          26.2               13.3 +/-    2.15      25.2 +/-    2.15  0.040 / 0.040
G03     307.6          59.4               12.2 +/-    1.00      13.9 +/-    1.00  0.040 / 0.040
G14     74.3           32.8                9.6 +/-    1.11      15.9 +/-    1.11  0.080 / 0.130
G16     157.4          31.2               15.7 +/-    1.05      26.7 +/-    1.05  0.090 / 0.120
G22     263.9          75.8               13.6 +/-    1.02      14.0 +/-    1.02  0.040 / 0.050
G23     297.8          28.8               11.9 +/-    1.94      21.3 +/-    1.94  0.030 / 0.060
G26     120.0          48.8               13.8 +/-    0.37      17.6 +/-    0.37  0.080 / 0.180
G31     41.2           44.3               10.1 +/-    1.15      13.7 +/-    1.15  0.080 / 0.200
G32     89.4           13.8               11.8 +/-    2.84      30.3 +/-    2.84  0.100 / 0.110