PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/19-00:43:10
G01     228.4          19.0                6.2 +/-    2.28      13.9 +/-    2.28  0.020 / 0.020
G03     294.8          64.9                2.5 +/-    0.62       2.7 +/-    0.62  0.020 / 0.020
G14     84.6           25.3                3.9 +/-    1.62       7.6 +/-    1.62  0.240 / 0.270
G16     155.3          39.4                7.6 +/-    0.67      11.1 +/-    0.67  0.240 / 0.340
G22     227.9          73.1                3.5 +/-    0.43       3.6 +/-    0.43  0.060 / 0.080
G23     304.5          34.2                2.7 +/-    1.53       4.4 +/-    1.53  0.050 / 0.080
G26     108.6          54.1                4.4 +/-    0.36       5.3 +/-    0.36  0.060 / 0.080
G31     43.0           38.0                1.9 +/-    1.30       2.9 +/-    1.30  0.030 / 0.090
G32     96.7           9.3                 6.6 +/-    3.00      18.6 +/-    3.00  0.110 / 0.140