PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/29-20:58:10
G03     210.6          57.4                9.2 +/-    0.51      10.7 +/-    0.51  0.170 / 0.340
G07     256.7          14.8               11.7 +/-    1.34      29.3 +/-    1.34  0.170 / 0.300
G09     309.9          26.9                6.5 +/-    1.89      12.3 +/-    1.89  0.040 / 0.100
G16     100.2          65.2               10.1 +/-    0.68      11.0 +/-    0.68  0.070 / 0.070
G22     188.1          41.8               11.7 +/-    0.99      16.5 +/-    0.99  0.030 / 0.050
G23     330.6          60.1                7.7 +/-    0.72       8.8 +/-    0.72  0.040 / 0.060
G26     54.0           43.8                6.9 +/-    0.59       9.5 +/-    0.59  0.090 / 0.160
G27     133.4          10.8               -3.8 +/-   41.72     -10.4 +/-   41.72  0.190 / 0.190
G31     59.1           10.6                7.0 +/-    3.00      19.4 +/-    3.00  0.170 / 0.380