PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/24-17:43:10
G01     235.4          25.1               12.6 +/-    1.30      24.5 +/-    1.30  0.030 / 0.040
G03     304.6          62.6                9.5 +/-    0.70      10.5 +/-    0.70  0.030 / 0.040
G14     75.3           32.6                9.1 +/-    0.91      15.1 +/-    0.91  0.080 / 0.110
G16     155.3          33.6               14.5 +/-    0.76      23.7 +/-    0.76  0.070 / 0.130
G22     250.8          76.4               11.7 +/-    1.29      12.1 +/-    1.29  0.060 / 0.070
G23     299.6          30.9                8.5 +/-    0.98      14.6 +/-    0.98  0.050 / 0.080
G26     116.0          49.9               11.9 +/-    0.74      15.0 +/-    0.74  0.090 / 0.150
G31     41.8           41.7                9.1 +/-    0.56      12.8 +/-    0.56  0.100 / 0.150
G32     90.9           12.3               10.2 +/-    1.21      27.0 +/-    1.21  0.030 / 0.040