PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/03-16:27:20
G02     30.3           58.2               12.3 +/-    0.47      14.2 +/-    0.47  0.030 / 0.040
G05     150.7          57.8               14.0 +/-    1.34      16.2 +/-    1.34  0.030 / 0.040
G06     52.0           19.5                9.8 +/-    1.23      21.9 +/-    1.23  0.030 / 0.060
G12     206.1          71.2               12.4 +/-    1.12      13.0 +/-    1.12  0.040 / 0.050
G19     98.6           10.0               12.3 +/-    1.93      34.3 +/-    1.93  0.030 / 0.040
G20     198.1          23.4               13.7 +/-    2.54      27.7 +/-    2.54  0.040 / 0.040
G25     298.8          53.7               13.0 +/-    0.53      15.7 +/-    0.53  0.070 / 0.140
G29     307.5          29.8               12.3 +/-    1.30      21.6 +/-    1.30  0.070 / 0.160