PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/13-23:28:10
G02     234.6          74.1               11.2 +/-    0.49      11.6 +/-    0.49  0.050 / 0.050
G05     171.9          14.4               13.6 +/-    1.58      34.3 +/-    1.58  0.040 / 0.060
G06     41.7           60.7               10.8 +/-    0.59      12.1 +/-    0.59  0.060 / 0.280
G12     321.6          49.5               10.6 +/-    0.93      13.5 +/-    0.93  0.130 / 0.240
G17     66.9           26.9                8.8 +/-    0.32      16.5 +/-    0.32  0.040 / 0.040
G19     53.0           41.6               10.3 +/-    0.46      14.5 +/-    0.46  0.030 / 0.060
G24     248.2          36.4               13.7 +/-    0.96      21.2 +/-    0.96  0.070 / 0.120