PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/25-08:12:30
G02     19.9           66.6                2.3 +/-    0.89       2.5 +/-    0.89  0.030 / 0.050
G05     155.9          47.6                8.5 +/-    1.20      11.1 +/-    1.20  0.030 / 0.050
G06     45.3           31.7                3.0 +/-    0.76       5.1 +/-    0.76  0.030 / 0.030
G12     265.0          78.9                4.0 +/-    1.11       4.1 +/-    1.11  0.030 / 0.030
G19     87.6           18.7                5.3 +/-    0.85      12.0 +/-    0.85  0.040 / 0.070
G24     219.6          13.7                6.1 +/-    1.82      15.6 +/-    1.82  0.040 / 0.080
G25     312.8          40.7                3.1 +/-    0.79       4.5 +/-    0.79  0.130 / 0.310
G29     297.1          19.0                3.4 +/-    1.09       7.7 +/-    1.09  0.160 / 0.350