PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/13-19:28:10
G10     272.9          41.7               14.2 +/-    1.40      20.2 +/-    1.40  0.180 / 0.190
G13     39.7           14.0               12.5 +/-    2.16      31.9 +/-    2.16  0.230 / 0.250
G15     56.6           48.4               13.6 +/-    0.73      17.5 +/-    0.73  0.040 / 0.030
G20     308.0          62.4               14.0 +/-    0.79      15.5 +/-    0.79  0.040 / 0.040
G21     20.5           74.8               14.6 +/-    0.72      15.0 +/-    0.72  0.150 / 0.270
G24     112.9          17.5               14.5 +/-    1.06      34.0 +/-    1.06  0.340 / 0.330
G27     316.8          21.6               13.1 +/-    2.36      27.8 +/-    2.36  0.040 / 0.050
G29     168.2          25.9               13.2 +/-    1.45      25.3 +/-    1.45  0.040 / 0.040
G32     204.9          14.4               11.5 +/-    4.17      29.1 +/-    4.17  0.120 / 0.200