PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/30-20:13:10
G10     268.7          39.4               11.3 +/-    1.35      16.6 +/-    1.35  0.100 / 0.190
G13     41.1           16.9                9.1 +/-    1.27      21.6 +/-    1.27  0.110 / 0.190
G15     61.1           51.9                9.6 +/-    0.47      11.8 +/-    0.47  0.190 / 0.640
G16     277.2          11.7                5.3 +/-    2.45      14.3 +/-    2.45  0.200 / 0.570
G20     300.4          61.0                8.3 +/-    0.40       9.3 +/-    0.40  0.040 / 0.050
G21     7.8            72.8               11.4 +/-    0.68      11.8 +/-    0.68  0.050 / 0.040
G24     116.4          15.4               12.1 +/-    1.05      29.9 +/-    1.05  0.120 / 0.210
G27     318.6          18.9                8.9 +/-    1.69      20.0 +/-    1.69  0.120 / 0.220
G29     168.0          30.0               10.8 +/-    1.31      18.9 +/-    1.31  0.110 / 0.310
G32     204.3          11.2               -2.4 +/-   44.26      -6.4 +/-   44.26  0.130 / 0.310