PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/12-03:28:00
G01     225.5          16.3                6.5 +/-    2.04      15.7 +/-    2.04  0.100 / 0.240
G03     287.8          66.5                2.5 +/-    0.67       2.7 +/-    0.67  0.100 / 0.220
G14     88.2           22.4                3.7 +/-    1.55       7.6 +/-    1.55  0.050 / 0.040
G16     151.5          44.0                8.7 +/-    1.77      11.8 +/-    1.77  0.040 / 0.040
G22     216.8          70.5                5.5 +/-    0.94       5.8 +/-    0.94  0.040 / 0.070
G23     307.1          36.5                4.0 +/-    0.87       6.2 +/-    0.87  0.050 / 0.070
G26     103.9          55.6                5.9 +/-    0.66       7.0 +/-    0.66  0.040 / 0.070
G31     44.2           35.0                2.8 +/-    0.54       4.4 +/-    0.54  0.040 / 0.070