PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/28-16:57:50
G03     209.1          58.0               11.3 +/-    0.98      13.1 +/-    0.98  0.040 / 0.090
G07     255.3          13.5               12.3 +/-    1.82      31.6 +/-    1.82  0.070 / 0.090
G09     309.1          25.6                7.5 +/-    1.53      14.5 +/-    1.53  0.030 / 0.060
G16     99.6           64.2               11.5 +/-    0.70      12.6 +/-    0.70  0.040 / 0.060
G22     186.0          41.4               11.9 +/-    2.23      16.9 +/-    2.23  0.050 / 0.060
G23     332.1          60.9                8.7 +/-    0.49       9.8 +/-    0.49  0.040 / 0.070
G26     54.5           43.6                9.7 +/-    0.60      13.4 +/-    0.60  0.090 / 0.140
G31     58.7           10.4                8.0 +/-    4.37      22.0 +/-    4.37  0.080 / 0.110