PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/22-05:13:00
G02     255.3          80.1                1.6 +/-    0.42       1.6 +/-    0.42  0.100 / 0.140
G05     169.8          19.3                3.8 +/-    1.60       8.4 +/-    1.60  0.090 / 0.150
G06     39.7           58.0                2.6 +/-    0.66       3.0 +/-    0.66  0.030 / 0.030
G12     321.2          53.2                2.0 +/-    0.47       2.5 +/-    0.47  0.040 / 0.040
G17     72.6           22.2                1.6 +/-    1.17       3.3 +/-    1.17  0.100 / 0.130
G19     60.2           36.7                3.3 +/-    1.05       5.1 +/-    1.05  0.080 / 0.130
G24     243.3          33.4                5.2 +/-    2.14       8.5 +/-    2.14  0.030 / 0.040
G25     317.2          13.9                1.4 +/-    2.94       3.6 +/-    2.94  0.030 / 0.040