PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/19-01:13:00
G08     318.6          13.1                9.7 +/-    0.95      25.3 +/-    0.95  0.050 / 0.040
G10     306.2          54.1               10.6 +/-    1.28      12.7 +/-    1.28  0.050 / 0.040
G14     212.0          19.6               11.7 +/-    2.96      26.0 +/-    2.96  0.030 / 0.050
G15     45.6           24.0                8.9 +/-    1.33      17.8 +/-    1.33  0.030 / 0.040
G18     10.4           64.8               10.0 +/-    0.57      11.0 +/-    0.57  0.080 / 0.120
G20     76.5           12.8               10.3 +/-    1.51      27.0 +/-    1.51  0.070 / 0.140
G21     113.9          69.1               13.7 +/-    0.58      14.5 +/-    0.58  0.070 / 0.080
G24     91.8           28.8               12.1 +/-    0.76      21.7 +/-    0.76  0.050 / 0.100
G27     290.9          37.2               10.9 +/-    1.52      16.7 +/-    1.52  0.120 / 0.490
G32     214.2          37.0               12.7 +/-    2.21      19.4 +/-    2.21  0.140 / 0.390