PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/15-03:27:40
G01     221.7          12.5                5.3 +/-    3.30      14.0 +/-    3.30  0.030 / 0.040
G03     272.7          68.7                5.6 +/-    1.15       5.9 +/-    1.15  0.040 / 0.050
G09     298.4          12.8                6.6 +/-    3.79      17.2 +/-    3.79  0.040 / 0.070
G14     92.9           19.0                4.0 +/-    0.64       9.0 +/-    0.64  0.040 / 0.080
G16     147.1          49.5                8.4 +/-    0.96      10.7 +/-    0.96  0.120 / 0.400
G22     206.2          65.6                7.8 +/-    0.57       8.4 +/-    0.57  0.110 / 0.360
G23     311.2          40.5                4.4 +/-    0.76       6.4 +/-    0.76  0.050 / 0.110
G26     93.3           56.6                6.5 +/-    0.42       7.6 +/-    0.42  0.050 / 0.110
G31     46.5           30.5                1.5 +/-    0.61       2.6 +/-    0.61  0.100 / 0.210