PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/19-05:58:00
G02     201.2          33.7                9.5 +/-    1.08      15.5 +/-    1.08  0.090 / 0.240
G06     162.5          65.3                8.9 +/-    0.62       9.7 +/-    0.62  0.110 / 0.240
G12     305.4          14.2                4.2 +/-    2.18      10.7 +/-    2.18  0.040 / 0.040
G17     33.7           50.8                6.0 +/-    0.97       7.5 +/-    0.97  0.030 / 0.030
G19     359.2          66.4                5.4 +/-    0.47       5.8 +/-    0.47  0.050 / 0.110
G24     302.0          35.2                5.4 +/-    1.02       8.6 +/-    1.02  0.050 / 0.080
G28     93.6           41.1                8.6 +/-    0.95      12.3 +/-    0.95  0.110 / 0.140