PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/28-18:43:10
G03     214.5          61.8               13.7 +/-    1.10      15.3 +/-    1.10  0.050 / 0.060
G07     252.5          11.2               -4.0 +/-   20.29     -10.9 +/-   20.29  0.050 / 0.060
G09     307.0          22.5               12.1 +/-    1.67      25.2 +/-    1.67  0.150 / 0.290
G14     104.9          11.3               13.2 +/-    1.06      35.9 +/-    1.06  0.170 / 0.340
G16     111.8          63.4               15.8 +/-    0.41      17.4 +/-    0.41  0.080 / 0.260
G22     188.9          46.6               13.0 +/-    1.53      17.1 +/-    1.53  0.100 / 0.190
G23     326.9          56.5               12.7 +/-    0.80      14.9 +/-    0.80  0.030 / 0.040
G26     58.9           46.9               11.6 +/-    0.91      15.3 +/-    0.91  0.030 / 0.030
G31     56.3           13.6               10.0 +/-    3.46      25.6 +/-    3.46  0.030 / 0.050