PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/25-01:28:10
G08     304.0          21.5                9.6 +/-    2.06      20.5 +/-    2.06  0.050 / 0.050
G10     338.8          60.9                8.3 +/-    0.34       9.4 +/-    0.34  0.040 / 0.040
G14     220.8          36.8               10.6 +/-    1.49      16.2 +/-    1.49  0.060 / 0.070
G18     44.5           58.0                9.7 +/-    0.63      11.3 +/-    0.63  0.070 / 0.070
G21     137.9          52.1               10.2 +/-    0.56      12.6 +/-    0.56  0.100 / 0.060
G24     70.4           30.2               10.2 +/-    1.16      17.7 +/-    1.16  0.090 / 0.060
G27     267.0          36.6               10.0 +/-    2.09      15.5 +/-    2.09  0.060 / 0.070
G32     227.8          54.7                9.6 +/-    2.57      11.4 +/-    2.57  0.050 / 0.060