PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/25-13:57:40
G02     342.9          79.1                4.3 +/-    0.86       4.4 +/-    0.86  0.140 / 0.210
G05     166.9          31.2                9.5 +/-    0.94      16.2 +/-    0.94  0.160 / 0.200
G06     40.9           43.5                3.0 +/-    0.72       4.1 +/-    0.72  0.040 / 0.100
G12     312.6          69.4                4.0 +/-    0.63       4.2 +/-    0.63  0.030 / 0.090
G19     75.7           26.2                5.0 +/-    1.14       9.6 +/-    1.14  0.030 / 0.040
G24     230.4          23.6                5.7 +/-    1.76      11.5 +/-    1.76  0.020 / 0.030
G25     317.2          30.0                5.3 +/-    3.69       9.3 +/-    3.69  0.050 / 0.060
G29     288.0          13.1                7.0 +/-    2.07      18.3 +/-    2.07  0.050 / 0.050