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               15.0 +/-    1.05      21.2 +/-    1.05  0.120 / 0.200
G13     39.7           14.0               11.8 +/-    2.28      30.1 +/-    2.28  0.130 / 0.190
G15     56.6           48.4               13.3 +/-    0.44      17.2 +/-    0.44  0.040 / 0.050
G16     274.1          10.3               12.0 +/-    2.37      33.2 +/-    2.37  0.040 / 0.050
G20     308.0          62.4               13.2 +/-    1.15      14.7 +/-    1.15  0.120 / 0.610
G21     20.5           74.8               14.8 +/-    0.74      15.3 +/-    0.74  0.110 / 0.570
G24     112.9          17.5               14.0 +/-    1.33      32.7 +/-    1.33  0.100 / 0.340
G27     316.8          21.6               12.4 +/-    2.82      26.2 +/-    2.82  0.100 / 0.270
G29     168.2          25.9               14.5 +/-    0.91      27.7 +/-    0.91  0.130 / 0.470
G32     204.9          14.4               12.4 +/-    3.18      31.4 +/-    3.18  0.100 / 0.300