PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/26-05:27:50
G01     255.2          37.1                5.2 +/-    1.36       7.9 +/-    1.36  0.170 / 0.320
G03     316.3          37.7                3.3 +/-    1.24       5.0 +/-    1.24  0.120 / 0.400
G11     238.1          15.0                5.4 +/-    1.62      13.5 +/-    1.62  0.030 / 0.040
G14     57.8           41.6                4.0 +/-    0.64       5.6 +/-    0.64  0.030 / 0.040
G16     166.2          13.9               -3.1 +/-   15.68      -8.0 +/-   15.68  0.070 / 0.100
G22     308.9          62.7                4.7 +/-    0.73       5.2 +/-    0.73  0.080 / 0.100
G23     283.1          15.7                3.8 +/-    8.68       9.2 +/-    8.68  0.050 / 0.100
G26     142.1          33.8                7.9 +/-    0.53      12.8 +/-    0.53  0.070 / 0.080
G31     41.7           63.8                4.5 +/-    0.72       5.0 +/-    0.72  0.090 / 0.440
G32     73.2           26.8                3.6 +/-    0.84       6.8 +/-    0.84  0.130 / 0.380