PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/24-08:12:30
G02     240.4          75.2                5.1 +/-    0.42       5.2 +/-    0.42  0.110 / 0.100
G05     172.9          14.8                4.3 +/-    1.84      10.9 +/-    1.84  0.090 / 0.080
G06     40.3           61.3                4.0 +/-    0.43       4.5 +/-    0.43  0.030 / 0.040
G12     321.2          50.3                4.0 +/-    0.68       5.0 +/-    0.68  0.040 / 0.040
G17     71.6           20.3                3.7 +/-    3.11       8.0 +/-    3.11  0.130 / 0.170
G19     54.7           40.6                4.0 +/-    2.01       5.8 +/-    2.01  0.120 / 0.170
G24     240.7          34.7                6.9 +/-    1.94      11.0 +/-    1.94  0.030 / 0.030
G25     316.5          17.0                2.5 +/-    2.99       5.9 +/-    2.99  0.040 / 0.030