PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/28-23:42:40
G08     287.1          23.4               15.8 +/-    1.14      32.0 +/-    1.14  0.030 / 0.030
G10     15.4           63.3               13.2 +/-    0.69      14.6 +/-    0.69  0.030 / 0.030
G14     234.9          51.9               12.7 +/-    2.91      15.6 +/-    2.91  0.080 / 0.090
G18     69.1           48.8               10.9 +/-    0.96      13.9 +/-    0.96  0.060 / 0.110
G21     147.9          34.1               12.0 +/-    1.93      19.4 +/-    1.93  0.120 / 0.110
G24     53.3           24.6               11.3 +/-    3.26      22.4 +/-    3.26  0.180 / 0.100
G27     248.0          28.9               14.0 +/-    1.37      25.1 +/-    1.37  0.100 / 0.110
G32     252.7          67.9               10.3 +/-    0.75      11.0 +/-    0.75  0.090 / 0.100