PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/09-01:57:50
G01     273.3          41.2                5.9 +/-    1.15       8.5 +/-    1.15  0.050 / 0.070
G03     315.2          25.9                3.7 +/-    3.47       7.0 +/-    3.47  0.040 / 0.080
G10     128.5          19.4                5.9 +/-    1.23      13.3 +/-    1.23  0.060 / 0.070
G11     250.9          21.8                7.7 +/-    2.03      16.2 +/-    2.03  0.050 / 0.080
G14     42.6           50.2                2.4 +/-    0.47       3.0 +/-    0.47  0.030 / 0.060
G22     314.3          49.0                3.5 +/-    1.06       4.5 +/-    1.06  0.030 / 0.050
G25     52.3           16.2                4.3 +/-    0.82      10.4 +/-    0.82  0.120 / 0.280
G26     153.1          21.3                7.5 +/-    1.70      16.0 +/-    1.70  0.100 / 0.290
G31     67.6           79.4                4.3 +/-    0.76       4.4 +/-    0.76  0.040 / 0.060
G32     60.4           36.6                2.9 +/-    0.96       4.4 +/-    0.96  0.040 / 0.090