PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/03-22:42:50
G10     259.2          32.4               19.6 +/-    2.18      32.7 +/-    2.18  0.070 / 0.090
G13     47.0           25.4               14.5 +/-    1.58      28.0 +/-    1.58  0.090 / 0.070
G15     70.0           54.3               18.7 +/-    0.46      22.4 +/-    0.46  0.220 / 0.390
G16     289.1          13.2               13.4 +/-    2.28      34.9 +/-    2.28  0.210 / 0.320
G18     285.0          61.1               17.9 +/-    1.18      20.2 +/-    1.18  0.040 / 0.040
G20     49.8           39.9               15.4 +/-    1.31      22.4 +/-    1.31  0.030 / 0.030
G21     349.1          67.5               17.5 +/-    0.69      18.7 +/-    0.69  0.140 / 0.270
G26     262.0          11.3               19.0 +/-    2.19      51.5 +/-    2.19  0.110 / 0.230
G27     320.7          14.4               11.6 +/-    1.90      29.3 +/-    1.90  0.070 / 0.070
G29     165.6          35.8               20.5 +/-    0.84      32.1 +/-    0.84  0.060 / 0.090