PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/09-05:43:10
G02     226.1          71.5                5.1 +/-    0.50       5.3 +/-    0.50  0.140 / 0.250
G05     174.0          10.6               -7.5 +/-   11.01     -20.6 +/-   11.01  0.060 / 0.100
G06     44.6           68.9                3.7 +/-    0.47       4.0 +/-    0.47  0.040 / 0.100
G12     320.5          43.1                3.5 +/-    0.64       4.9 +/-    0.64  0.050 / 0.050
G17     64.5           27.7                1.7 +/-    2.06       3.2 +/-    2.06  0.030 / 0.040
G19     50.1           42.9                3.0 +/-    1.12       4.2 +/-    1.12  0.030 / 0.030
G24     254.8          38.6                3.4 +/-    1.44       5.0 +/-    1.44  0.030 / 0.020