PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/30-23:12:30
G08     297.5          22.9               12.3 +/-    1.06      25.3 +/-    1.06  0.060 / 0.090
G10     353.4          62.4               11.3 +/-    0.77      12.5 +/-    0.77  0.060 / 0.100
G14     225.7          43.0               15.9 +/-    0.63      22.1 +/-    0.63  0.050 / 0.070
G18     56.2           53.9               13.2 +/-    0.68      15.9 +/-    0.68  0.040 / 0.080
G21     142.8          43.9               16.3 +/-    1.60      22.4 +/-    1.60  0.030 / 0.040
G24     62.7           28.6               12.3 +/-    0.72      22.1 +/-    0.72  0.040 / 0.040
G27     258.6          34.0               14.1 +/-    1.80      22.8 +/-    1.80  0.070 / 0.120
G32     235.6          59.6               14.3 +/-    0.59      16.3 +/-    0.59  0.100 / 0.130