PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/16-18:12:30
G02     63.0           31.6                7.1 +/-    1.26      12.1 +/-    1.26  0.370 / 0.350
G05     52.0           57.9                8.1 +/-    0.52       9.4 +/-    0.52  0.250 / 0.370
G12     181.3          23.3                8.9 +/-    1.47      18.2 +/-    1.47  0.080 / 0.130
G13     122.3          19.7                9.4 +/-    1.02      20.9 +/-    1.02  0.100 / 0.140
G15     164.5          15.0                9.6 +/-    2.08      23.8 +/-    2.08  0.020 / 0.040
G21     276.9          21.4                7.3 +/-    1.26      15.5 +/-    1.26  0.030 / 0.050
G25     224.7          46.1                9.1 +/-    2.84      12.1 +/-    2.84  0.110 / 0.110
G29     332.3          60.4                7.0 +/-    0.57       7.9 +/-    0.57  0.100 / 0.120