PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/13-14:43:00
G02     23.8           62.0                6.9 +/-    0.86       7.8 +/-    0.86  0.060 / 0.050
G05     154.8          54.8                9.1 +/-    1.09      10.8 +/-    1.09  0.040 / 0.050
G06     50.9           19.6                5.5 +/-    2.30      12.3 +/-    2.30  0.020 / 0.030
G12     202.9          72.8                8.1 +/-    0.22       8.5 +/-    0.22  0.030 / 0.030
G19     94.0           16.3                6.7 +/-    1.41      16.1 +/-    1.41  0.150 / 0.270
G25     301.6          52.5                7.1 +/-    1.46       8.7 +/-    1.46  0.130 / 0.200
G29     303.1          23.6                6.4 +/-    1.78      13.0 +/-    1.78  0.130 / 0.180