PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/19-23:13:10
G10     247.3          22.9               14.5 +/-    2.73      29.7 +/-    2.73  0.140 / 0.330
G13     58.6           33.4               13.9 +/-    0.42      22.8 +/-    0.42  0.120 / 0.330
G15     97.4           58.2               15.1 +/-    0.65      17.4 +/-    0.65  0.100 / 0.220
G16     301.8          14.3                9.3 +/-    2.04      23.4 +/-    2.04  0.110 / 0.200
G18     262.9          52.8               13.3 +/-    0.69      16.3 +/-    0.69  0.030 / 0.080
G20     40.7           51.0               10.6 +/-    0.76      13.2 +/-    0.76  0.030 / 0.050
G21     329.1          57.8               12.7 +/-    0.58      14.7 +/-    0.58  0.020 / 0.060
G26     274.1          16.8               11.6 +/-    2.03      27.7 +/-    2.03  0.030 / 0.050
G29     162.5          51.4               13.1 +/-    1.16      16.2 +/-    1.16  0.040 / 0.070