PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/16-05:27:30
G02     238.8          76.7                3.0 +/-    0.66       3.0 +/-    0.66  0.130 / 0.190
G05     171.6          15.4                4.2 +/-    1.15      10.4 +/-    1.15  0.170 / 0.250
G06     40.9           62.7                1.8 +/-    0.59       2.0 +/-    0.59  0.030 / 0.030
G12     321.2          48.8                2.0 +/-    0.92       2.5 +/-    0.92  0.040 / 0.040
G17     69.1           24.5                4.8 +/-    1.65       9.5 +/-    1.65  0.100 / 0.110
G19     55.9           39.4                3.0 +/-    1.71       4.4 +/-    1.71  0.080 / 0.120
G24     248.0          35.8                5.8 +/-    1.97       9.0 +/-    1.97  0.040 / 0.050