PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/08-22:43:10
G08     295.9          23.1               13.8 +/-    1.34      28.1 +/-    1.34  0.040 / 0.040
G10     357.1          62.7               12.7 +/-    0.76      14.1 +/-    0.76  0.030 / 0.030
G14     227.1          44.4               17.3 +/-    1.02      23.6 +/-    1.02  0.060 / 0.090
G18     58.8           52.9               13.5 +/-    0.66      16.4 +/-    0.66  0.060 / 0.100
G21     143.7          41.9               15.5 +/-    0.87      21.9 +/-    0.87  0.050 / 0.090
G24     60.9           28.1               11.7 +/-    0.94      21.4 +/-    0.94  0.040 / 0.090
G27     256.7          33.3               15.1 +/-    1.30      24.7 +/-    1.30  0.090 / 0.100
G32     238.0          61.1               16.0 +/-    0.52      18.0 +/-    0.52  0.080 / 0.110