PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/09-07:58:10
G01     222.4          13.4                3.0 +/-    3.07       7.8 +/-    3.07  0.100 / 0.150
G03     278.0          68.0                3.5 +/-    0.52       3.7 +/-    0.52  0.130 / 0.270
G09     298.0          13.2                4.3 +/-    1.55      11.1 +/-    1.55  0.120 / 0.510
G14     92.0           19.4                3.6 +/-    2.29       8.1 +/-    2.29  0.150 / 0.650
G16     144.0          49.7                5.6 +/-    0.82       7.1 +/-    0.82  0.060 / 0.080
G22     204.5          66.2                6.1 +/-    1.02       6.6 +/-    1.02  0.050 / 0.080
G23     310.2          39.6                2.9 +/-    1.28       4.2 +/-    1.28  0.040 / 0.040
G26     90.6           55.3                5.1 +/-    1.28       6.1 +/-    1.28  0.040 / 0.040
G31     46.9           28.5                2.7 +/-    2.06       4.9 +/-    2.06  0.140 / 0.230