PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/08-03:57:50
G01     221.2          12.1                5.7 +/-    3.14      15.2 +/-    3.14  0.040 / 0.040
G03     271.2          68.8                5.2 +/-    0.65       5.5 +/-    0.65  0.030 / 0.040
G09     298.8          13.5                4.9 +/-    2.84      12.6 +/-    2.84  0.110 / 0.210
G14     93.5           18.6                4.4 +/-    1.14       9.9 +/-    1.14  0.140 / 0.190
G16     146.0          50.3                8.7 +/-    0.56      10.9 +/-    0.56  0.110 / 0.330
G22     205.1          65.0                8.1 +/-    0.70       8.8 +/-    0.70  0.130 / 0.310
G23     311.6          40.9                4.6 +/-    1.39       6.7 +/-    1.39  0.110 / 0.270
G26     91.4           56.5                6.8 +/-    0.59       8.0 +/-    0.59  0.100 / 0.250
G31     46.9           29.6                1.9 +/-    0.58       3.3 +/-    0.58  0.050 / 0.100