PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/10-20:27:40
G02     57.9           34.9                8.1 +/-    0.31      12.9 +/-    0.31  0.030 / 0.040
G05     59.3           62.0                9.6 +/-    0.64      10.7 +/-    0.64  0.030 / 0.050
G12     181.8          30.0               12.0 +/-    2.56      21.1 +/-    2.56  0.040 / 0.070
G13     128.3          14.8               13.8 +/-    1.42      34.5 +/-    1.42  0.050 / 0.070
G15     166.5          10.3               -8.3 +/-   20.71     -23.1 +/-   20.71  0.050 / 0.090
G21     270.5          16.0               10.8 +/-    2.67      26.2 +/-    2.67  0.050 / 0.110
G25     236.3          52.2               10.0 +/-    1.12      12.3 +/-    1.12  0.040 / 0.060
G29     326.9          52.7                7.2 +/-    1.02       8.8 +/-    1.02  0.040 / 0.050