PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/23-03:42:40
G01     315.1          24.9                8.0 +/-    1.41      15.7 +/-    1.41  0.030 / 0.030
G10     91.3           49.1                8.5 +/-    0.64      10.8 +/-    0.64  0.030 / 0.030
G11     293.0          28.0                6.9 +/-    1.68      12.6 +/-    1.68  0.040 / 0.050
G14     330.2          70.9                8.8 +/-    0.66       9.3 +/-    0.66  0.050 / 0.050
G18     108.3          24.0                7.8 +/-    1.36      15.6 +/-    1.36  0.110 / 0.260
G22     304.6          16.8                6.8 +/-    2.25      16.2 +/-    2.25  0.100 / 0.190
G25     89.6           12.1                8.5 +/-    1.91      22.7 +/-    1.91  0.140 / 0.450
G31     174.7          50.8                9.5 +/-    1.29      11.8 +/-    1.29  0.310 / 0.320
G32     18.4           62.5                7.3 +/-    0.38       8.1 +/-    0.38  0.040 / 0.060