PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/10-05:42:30
G01     224.1          15.0                5.5 +/-    0.76      13.8 +/-    0.76  0.150 / 0.250
G03     284.0          67.1                3.2 +/-    1.06       3.4 +/-    1.06  0.140 / 0.270
G09     296.6          11.7                3.4 +/-    4.76       9.2 +/-    4.76  0.040 / 0.050
G14     90.0           21.0                3.8 +/-    1.30       8.2 +/-    1.30  0.040 / 0.050
G16     148.0          46.8                5.1 +/-    1.50       6.8 +/-    1.50  0.150 / 0.330
G22     211.1          68.8                3.5 +/-    0.96       3.7 +/-    0.96  0.180 / 0.390
G23     308.4          37.8                3.4 +/-    1.26       5.2 +/-    1.26  0.030 / 0.090
G26     97.4           55.6                5.0 +/-    0.51       5.9 +/-    0.51  0.040 / 0.080
G31     45.5           31.7                2.8 +/-    0.26       4.8 +/-    0.26  0.060 / 0.100